Yeah, especially since I have some real whoppers in there - 名探偵コナン alone is over 100 volumes, and if I get around to One Piece (which is on my natively wishlist) that’s also 100 plus all on its own.
But even if it’s a really big pile from a “to read” perspective, it also just makes me happy to have them on the shelf. My friends joke that I’m a dragon and that my hoard is books, figures, and mugs. MTG cards have recently become a new addition too but at least the common ones are pretty cheap.
Really it just shows that I live within walking range of book-off and have poor impulse control, but your reason sounds so much nicer 
I will be putting this under a dropdown because I’m about to be extremely chatty about ヴァニタスの手記, its mangaka, and its predecessor Pandora Hearts.
Abandon All Hope, Ye Who Enter Here (Wall Of Text)
So!
First of all, I will say that I’m biased going into this, because I’m a bit of a long-time fan of this particular mangaka. Her previous series, Pandora Hearts, was releasing while I was in middle school and I followed it until it finished and am, to this day, still rather feral about it. (They recently released some PH goods downtown in Umeda, and I made an unplanned detour after work to meet a friend there and drop entirely too much money on it. It’s so hard to find PH goods in the US 
)
So when I heard about Vanitas I knew that I would be reading it. Like, no question.
But to actually try and answer your question, one of the (multiple) reasons I liked Pandora Hearts is because Jun Mochizuki’s art is SO pretty. The colored pieces especially are kinda insane. But I also enjoy how she draws character expressions in-series, both in the serious moments and in the more comedic ones, because she does do a nice job balancing the Drama™ with lighter hearted moments. Vanitas, so far, has been much the same, and I’m definitely going to keep an eye out for any good goods or prints they might release.
Obviously I’m not very far into Vanitas yet, but so far it’s on track for what I would expect from her atmospherically - if you enjoy a fantasy story with a good deal of intrigue (not quite a straight up mystery, and not a political drama (bleh), but certainly a lot of questions and unknown factors) and also with a lot of character-focus, you’d probably enjoy this. Pandora Hearts was not easily predictable, and I don’t expect Vanitas to be either. I do NOT mean in an MCU, “oop we can’t let the audience guess what we’re doing, gotta pull some weird twist outta nowhere!” kinda way. It’s just one of those series that when you re-read you can see a lot of the little pieces she set up earlier on that suddenly make sense once the big questions get answered.
It is definitely fantasy (vampires in Paris) and, as someone who is both very character-oriented and cries so, SO easily, I expect it to absolutely obliterate me emotionally. Pandora Hearts was extremely good. It also made me cry soooo much. Vanitas has already made it clear that I should expect the same flavor, which is ironically why it’s taken me so long to start reading it.
Since PH was actively releasing while I was reading it in middle school, I would read what was available, cry a lot, wait 6 months or so, re- read up to the newly available stuff, cry a lot, repeat. I did this like at least 4 times. So when Vanitas first released I started reading it in English, got to the end of the first chapter, and went “Wait a second. If I start reading this now, when it’s brand new, how many times am I gonna put myself through the emotional wringer???” and then swore I wouldn’t read it until it was finished or nearly so. That oath actually lasted most of a decade!
…And then they ran a PH x Vanitas collab cafe a couple of months ago AND goodsmile released a set of Vanitas and Noe 1/7 scale figures and…my willpower crumbled like a wet paper towel.
Point is, so far I’m having a great time with it. I will say that one thing to keep an eye out for if you start reading it, though, is that Jun Mochizuki likes to make use of the furigana a bit creatively at times. For example, with the series being set in Paris she’ll sometimes have the furigana actually be a French word for whatever kanji she’s using, instead of just the reading of the kanji themselves. It’s just something to be aware of as you read so you don’t get confused.
Anyway TLDR:
The art is pretty and the story is interesting so far, I expect it to be an absolute emotional rollercoaster, be careful to double check the furigana. Definitely recommend it if it caught your eye.
thanks for sharing! a lot of those are series, especially with longer ones those blow up the to read pile 
but one just cannot not buy the whole series, right? im like that, too, mostly ^^ though my to read list isnt as long as yours by far. it just shows you’ve probably been learning/reading japanese and way longer than me ^^
It took me multiple days (even though it was already half read