There are a good number who use them as sole cars. If you need extra carrying capacity, find a 4 seater. If were to move on, I'd be driving mine most of the time (couldn't get rid of my Land Rover though ).
Cheers,
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly '11 MINI Countryman Cooper D All4 '90 LR 90 SW