Wow 128 games! How many have you actually played?
I only have 7 right now :( - all gifted. I didn't spend a dime on them! That's right, I'm a huge freeloader!
Actually played or started at least as far as the menu or equivalent?
If the latter, 96. If the former, 66, I think. Although I haven't come very far in many of them, and have lost most saves so I'll have to restart most anyhow.
This is counting packs, which in a couple cases mean I've played only a single game from a pack, and it's not necessarily the GOG version (I counted Commandos 2 as I played it quite a bit 10 years ago, but haven't installed the GOG version yet, and there are a few other similar examples).