In Houston there is a store called "Texas Junk Supply" that advertises as having over 1800 "pre-owned" cowboy boots.
Of course, I bought a pair, and they were only $35:
If you are ever in Houston, check out this store. It is definitely worth it as a unique Houstonian experience. Also, the boots are pretty awesome. If you know anything about cowboy boots you know how expensive they are, but many of these boots are in great condition and are quite cheap. If you're willing to walk in another man's shoes [I am hilarious], you should get a pair for your very own.
PS: I thoroughly cleaned and disinfected the boots before wearing.