The Commodore 64 was my first game system, essentially. Right up until I got my TG-16, in fact, it's what I played games on. Those load times are not missed! Thank god for emulation in the case of the C64.
There are still some CD based games that I want, but I want to focus on cartridges again because I just feel like they are gonna outlast the CD games overall. Re-collecting some of my favorite Hu-cards is first on my list, in fact, although I'm not looking to complete the whole set or even go for some of the rarer ones. Most of the ones I want to get again are thankfully pretty common. Can't say the same for some of the CD games I want though (*cough*DEII*)