Having spent time on the wild and untamed Salwa Rd. myself, I can tell you that those asking prices have nothing to do with the market value and more to do what the owner intends to net from the sale. I can safely say that most (not all) used cars at Salwa Rd. have body or paint repair issues at the minimum to rollover issues at the higher end.

To answer your question on the twin 2006 Land Cruisers, the cheaper one might have major accident history or the owner of the expensive one is out of his mind by thinking his car is worth a lot more than the prevailing market.