Sub-ambient cooling in general took a nose-dive right around 2006-2007, be it peltier or vapor-phase or dry-ice, etc. Water nearly died at the same time but it hung on for another 3-4 yrs before hitting an adoption-rate brick wall (not talking about the corsair-type pedestrian water cooling).
Basically once heat-pipe enabled air-cooling came along, combined with PWM 120mm and 140mm fans being routine and mobo fan headers that ramped rpms (noise) with CPU temperature, the market for non-air cooling lost its cost-benefits edge.
Consider that circa 2009 I removed and mothballed my already purchased vapor-phase cooling hardware (cost me $1k) and installed a Tuniq120 while taking a 700MHz clockspeed hit (4GHz -> 3.3GHz) and I didn't mind it all. I mean I already owned this $1k peice of hardware and I was not willing to bother using it anymore, the ice, the condensation, the mess, the issues...just wasn't worth it.
(not too mention the condensation issues were what killed my $1500 QX6700, but that wasn't the reason I mothballed the unit)
When I look at the market now, what I can get with air-cooling versus water versus anything else, there is almost no opportunity left on the table for water cooling let alone sub-ambient cooling. The glory days are gone.