General Forum

For me it kind of depends on what the error/variation is. For something like RoundtheDiamond87 mentioned above regarding the '88 Topps Al Leiter error, I do prefer to have the correct version in my set, though it is fun to have both. For the newer purposeful variations, I only go for those in my player collections. Otherwise if I come across one it's great trade bait.

When building sets I just get whichever card I happen to get. I don't make any special effort to get the ERR/VAR version, as long as I can check that card number off my wantlist.

For my Blue Jays team sets and John Olerud collections, though, I do try to get the variations that I feel are relevent. For example I chase Topps Heritage variations but not the early 1990's Donruss INC./INC  variations. It varies on a case-by-case basis.