It's not about that, it's about manufacturers going for the low hanging fruit first if they are restricted to selling a small limited amount. These manufacture

It's not about that, it's about manufacturers going for the low hanging fruit first if they are restricted to selling a small limited amount. These manufactures in my example have already gotten the economies of scale by developing for their local market, so on a marginal basis, it doesn't apply in this metaphor. On a cost basis, those unit construction costs are around $200k for a 3 bedroom 'family' condo vs. the $1 million that a condo would currently cost today in the SF bay area. Big difference and actually affordable for a $70k/yr annual income vs the $335k/yr income required for a $1million dollar condo.