See there's another thing, I categorise my rifles by purpose mostly, so at present the pecking order would be M4, L85, G36, LCT AK, then my ex-rental, I can't see myself burning out that many guns in one day (And if I did, I'd go home anyway because of grumpiness).
I picked it up from my local site The Grange, they only sell a few a year and they tend to go straight to regulars (or whoever is top of the waiting list).