To me, all you're suggesting is replacing the word gil with scrips. Why should my hard-earned gil, that I've accumulated over 6 years of playtime be made redundant to some scrips?

Your suggestion also doesn't solve the shortage, it just merely delays the whinging by gating access to housing behind yet another layer that people will find a way to get through in a matter of time.

The only solutions to the shortage is giving supply that meets the demand. Not some convoluted suggestion (and you're not alone in suggestions) that trickles through the access to a select few, whether by luck or by effort.