Getting >100 VNs isn’t a particularly difficult task. Go back to 2001 or so and buy every game that looks awesome as it comes out. You’ll easily have over a hundred by now.
That doesn’t mean just getting the games that actually were awesome. You have to get everything that looks like it’s going to be awesome. That includes every big, hyped release that flopped because half the characters had their routes cut and were replaced with a bunch of uninteresting nobodies.
You’ll end up with a lot of junk in your collection, but you’ll have quite a collection. Imagine, being able to go back and play Garden any time you want. =P
(for reference, 100 games is only about 2.5% of the VNs that came out 2001-2007)