As a physical collector, outside of just rarity of certain titles...the most difficult aspect for me, is just deciding which thing to get at the moment sometimes is. Like switch is my primary collecting platform, and there are so many titles i still don't have that i want, and i often cant decide "do i get this title now, or this one." Sometimes it feels like the choice isn't mine, because "well if i dont get this one now, it'll only go up in price maybe" so i feel like i should get ones im not interesting in playing right away because of rarity BS.
Just kinda frustrated, cuz I'm in that predicament right now. I have the spare funds to pick up another title, but I'm bouncing all over the place unsure which one to get now instead of later.
I think that's part of the reason why i like shopping in stores in person. it helps limit your choices if you see something that you want right in front of you, as opposed to...well i can order ANY title i want online if i'm willing to pay the prices they are.