help me decide on a refrigerator purchase

Almot let me correct the larger size/same footprint statement. As an example the Norcold DC0788S is a 3.1 cu.ft. fridge per their website with dimensions of 20.5 " wide x 30 " tall x 20 1/4 " deep. The Novacool R4500 is a 4.3 cu.ft. with dimensions of 20 1/4 " wide x 28 3/8 " high x 21 " deep. So nearly identical footprint size but the Novacool is 1.2 cu.ft. larger which is a good thing. I want to try and max out the interior size ( within reason ) and still fit the current space as I plan to add a built in microwave over the fridge. The microwave will not impede the cooling for the fridge. I spent about 6 hours on the net last night researching all the brands mentioned in this post and I can find good and bad comments about all of them so I take that with a grain of salt. I am a believer in you get what you pay for so not looking for the cheapest way out. I do think I'm leaning towards a 12 volt fridge from the marine industry but still have not ruled out an absorption type either. I have about a year to decide and technology could make a large leap in that time. Thanks for the feedback.