Normally I agree with your position on these type of things. I like to keep things simple too. For me I decided a backup camera would be valuable since visibility out the rear window is so poor on the Jeep due to the spare tire and windsheild wiper. So I have a double DIN on order.
I looked at the Sony XAV-V10BT very seriously before I ordered a Kenwood unit. I really liked that it was a single DIN. My order is on back order at Crutchfield and hasn't shipped yet. Now I wonder if I am making a mistake purchasing something that requires cutting the factory radio support shelf. I might have to reconsider.
I really go back and forth and up and down and sideways and all over in this topic. I start at a position like Zorba, where its a basic utilitarian vehicle and doesn't need much. Then I decide the backup camera would really be an asset due to the poor visibility out the rear window. But I still require a volume know for simplicity. Then the next thought is that Android Auto would be nice to have for map navigation. Then I remember I don't need or really want all this electronic garbage in my Jeep. I just want to enjoy the raw, basic, utilitarian machine as it is. So I end up back at a simple cheap radio. Then I think about a backup camera and the cycle starts again.