Mark Coleman is selling the fight gloves he wore at the 2000 Pride GP, two pairs... http://mmacollector.com/moreinfo.html?rec=MCGP2000GLOVES Sounds like Coleman has fallen on hard times. $5,000 seems optimistic... $40,000 is outrageous. I recall hearing that Coleman couldn't afford a proper training camp leading into his fight with Shogun in the UFC but I may be mistaken.
Maybe, maybe, maybe someone has talked him into selling some of his stuff against his will, so he has put an exorbitant price tag on items he doesn't really want to part with. However it does seem more likely he is desperate.