There's been more innovation in mains fridges than 12/24v volt compressor fridges. The upshot of this is one can run a mains fridge and a resonable inverter quiescent load for the same power requirements of a 12/24v jobber. Saving ~€500 to be put towards a decent inverter.
Comparatively a 60L compressor fridge will use in the order of 250Wh per day whereas an absorption fridge will use about 2.4kWh per day for less reliable cooling with a human thermostat on gas.
Another failing of the absorption fridge is that it is usually setup to run continuously from the alternator. Most split charge systems will deliver about 10A charge. 15A would be considered good, 20A far above average. I generally expect to see ~7A.
Split charge systems I build incidentally deliver >70A.
So if attempting to recharge a depleted service battery while driving with an absorption fridge running you can expect your charge system to be delivering somewhere between -3A and +5A. An altogether pointless excercise.
A compressor fridge will use about 3.5A and turn off at desired temperature.
I have nothing good to say about gas fridges and I've plenty of experiance with them to colour my opinion, they're boat anchors. €600 buoyant boat anchors...
Ask yourself a question, would you fit it in your house?
If the answer is no, why would you pay 5 times the market value of something you would for the disservice?