"Looks like the smaller ones go for around $5"
You mean these smaller ones? Seems to me that most of these were around $50-$75...a couple may have been a little less, we've seen some go over $100. I guess prices could have come down, but...$5?

Landmark, Stardust, Dunes

Aladdin, MGM, Hacienda

LV Horseshoe, John Ascuagas Nugget, Aladdin, Circus Circus, MGM