G'morning, Doc.  At the keyboard bright and early today, I see.  Credit, where credit is due: thanks to Ryerson for giving a derisive finger to the "ultra rich house buyers from overseas" theory and encouraging more of your comments.

About those foreigner buyers:  "hundreds ... every month."?   Hmm, maybe not.  No monthly stats on foreign buyers so nobody really knows for sure.  Including you, Doc. Got a clue, last month, though.
 
Metro Vancouver residential sales, February: 2,425.  According to Van. Sun (March 27), Feb total of foreign deals: 73. "Last month, foreign nationals accounted for about $93 million in residential sales in the region, or a little more than three per cent of both the value and number of all transactions."  Note:  "value"

For sure: Van. supply is very tight. Febs listings were lowest since 2003.  March's, lowest since 2009. Detached homes?  First quarter of 2017: just 31.5% of all sales. Scarcity= Huge price increases.  Ryerson's on to something...