I have been buying, collecting, and flipping Magic: The Gathering as not only a playable game, but as a great source of investment income since 1994. Selling very small parts, even single cards, has gotten me through some otherwise rough times, and some of the cards still in my collection have not only outpaced inflation, but almost every other market as well.
Now that Hasbro has it's greedy hands in the pool, they are reprinting the shit out of a great deal of some of the older valuable cards, thus devaluing the secondary market, and the pace at which they are releasing cards is causing a lot of players/collectors a good deal of financial exhaustion.
I still buy a decent amount of recent printings and flip them on a few secondary markets. Gambling, yes, but it is good for an extra 500-1000 USD a month in my pocket.
!PIMP
RE: Are Sports Cards a Good investment?