Here are some parts of collecting cards that most people like, but I don't.
Parallels. In the 1990s, there were sets with one or two parallels. Now, we talk about collecting rainbows. It has really gotten out of hand. Panini in general is very bad about this. Topps has their fair share, though; inserts have parallels, plus relic parallels, autograph parallels, and autograph relic parallels, and then all the variations. There are just way too many sets out there. Mike Trout had over 2500 cards issued last year according to Beckett's database. A little over 150 were from main sets, and over 1700 were parallels or parallel inserts (the remaining 650 are inserts).
Look, you probably like some of these things. Or all of them. I'm cool with that. But don't expect to convince me to change my mind.