First 2 camper we owned had dinettes. They were worthless in my opinion, uncomfortable, crowded, and just in the wrong position. Never used them as a bed.
Last camper (my Outback), came with a free-standing table and 4 chairs. After a year and a half we removed the table and chairs completely and put in it's place a full sized household 3 seater reclining couch. Love it so much, we bought an identical one for the house.
Do we miss the table and chairs! Absolutely NOT! The table was just a catch all for every item in the camper. It was always piled up with stuff! We never used it as a place to eat. We have camping TV trays we use outside the camper. We now use them inside the camper. Been using them for years now. They work just fine. They can fold up out of the way, be taken outside for around the camp fire, and used as an extension for the counter top when doing dishes.
And by the way ... doing dishes and counter top space! ALWAYS put washed and dried dishes away in the cabinets immediately and you won't have clutter!
Do we miss the table and chairs? Absolutely NOT! It was the best thing we could have done. It gives us more space, and gave us a piece of furniture we now enjoy!
Original configuration:
After we moved some of the original furniture around (which didn't work for us either) :
Now:
I put wheels on the couch so it can be rotated. Now we have the best of everything: