Dive into anything

Hey y'all.

I've come to you guys for help in the past and was impressed with the knowledge here, so I figured I would try my luck again.

I am currently sharing a big house, and we've been using two refrigerators.

This works for now, since we already had them, but I've been thinking about a replacement since both are showing signs of age.

I would have loved to replace them with a two door, commercial fridge.

My concerns are:

I would have hoped to find one used, but most of the ones I see have glass doors.

I'm thinking this must be great when you have a business, but the insulation value of these doors must be quite poor, rendering the fridge quite a bit less efficient.

Am I overestimating the difference those make? Would the cost to run one of these even be close to running two average consumer grade refrigerators?

Second: Not knowing anything about those, should I be wary of their maintenance costs?

Anything else I might not be thinking of?

Thanks.