That is a good argument, but some things are priced as absolutes and not as a percent of CoL. So, true, in Romania your salary is ~ 10x your CoL and in SV it would be 5x maybe, but the money left over in absolute terms (9x Romainan_CoL vs 5x SV_CoL) is significantly different. So, if you want something that is priced absolutely, like a plane or a boat, SV is still better.