Being able to go camping and cheaply anywhere in the country all year round. Our tent as a loo / sink but we don't use the shower so still use toilet blocks for all that sort of thing (and strictly no number 2s). Also the cooker doesn't work so we BBQ or grill (or go to the pub obv).
DH is more of a camping tent snob purist than me and at some point we'll go back to it but it does mean we can get away from Feb - Oct no probs.