How much money did you spend on your hobbies/collections? Any regrets?

Growing up I probably spent more than that on football and baseball cards. Odds are you will get maybe 20-25% of what you spent if you spend a lot of time selling them on ebay, after fees and offers of less than what you paid.

I can't say that I regret purchasing Magic the Gathering or Pokemon cards because I've made well over a couple hundred dollars back off of my initial investment. Search for sites that buy cards back and list the buying price. They will sell better than Ebay.com

For me, I used to have nba cards and I think I spent roughly $500 for them and I shifted to magic when I was in highschool and spent about $2000 and right now I'm working and I had an interest again in magic beacause I miss the good old days, the glory days as we say and I think I've already spent $1500 on them.