Hi there,
Even though there are just the 3 of us we have been staying in private villa's for many years.
Mainly because of our son's special needs, but we do enjoy the extra room and freedon of a villa, having to cook isn't a downside also as we rarely eat out.
To be honest I wouldn't necssarily say it is a cost saving exercise grocery wise, especially as it is fairly cheap eating out at restaurants in Florida.
On this year's holiday we spent a fortune on groceries, and you also have to bear in mind you will probably have to buy non-food items also.
Toliet tissue, kitchen towels, bin liners and the usual things you may need when staying in a home..so all that does add up cost wise, you may even have to buy salt, sugar and things like cooking oil too.
I am never stayed in a condo type apartment, though we have stayed in DVC Disney accomodation , again this doesn't really save money - just the opposite probably.
If you really want a villa, I wouldn't get anything bigger than a 3 bedroomed and you would probably save a bit of £$ too with this sized home.
Attached are some direct links to smaller villas, any questions 'give us a shout'
http://www.villas2000.com/frbvo/Central/3bed.php
http://www.vr360homes.co.uk/3bed_florida_villas.asp