Yes, this is absolutely true. But how often do you find used shoes that flip for $2,400? And, if it really is all about the Benjamins, yes, I would rather do the basketball jersey, or, better yet, the calfskin loafers. If I thrift ten pairs of loafers for $3 apiece and flip them for 30x, then I have risked just $30 of my money and made the same amount as acosbysweater made risking a lot more coin. Now, you can argue that I had to go to the thrift store a lot to find those loafers, which is true, but I suspect that acosbysweater had to go at least as often to find those croc loafers, unless he was extraordinarily lucky, which is possible. But, assuming he's like me and is addicted to thrifting, then we're both using the same amount of gas and time.
In the past year, or even six months, I'm quite certain that I have flipped at least ten items for 30x investment, or even more. I'm sure acosbysweater has done the same. My point isn't to begrudge his find or good fortune. My point was to put it in perspective, that small-ball tends to win more games than waiting for the DH to come up big.