I'll take a stab at that answer, because we are doing the same.
Cooling unit in ours went out. $2k for a new one. By all reports the new ones wont last as long as our old one.
A 10 cu ft electric refrigerator can be had for less than $300. Home Depot has the Magic Chef for $298. I tested several and they all pretty much were ~ 500w startup, < 100w running. In 24hrs it was less than 1 kilowatt.
A true sinewave inverter to run it if you don't have one is $150 at camping world (Xantrex PROWatt SW 600). Adding a 130w Kyocera solar panel to boost battery time ~ $400.
So for less money than a flaky refrigerator that does not do that good of job you can go electric. To me this was a no brainer.
For me it made even more sense. I already had a solar system in place and a 2k sinewave inverter.