If you are buying new, ignore this. If you want good used consider 73-78 GMC's (23 or 26 ft). Often considered the best motorhome ever made. The only one ever puspose built from the ground up and crash tested by a manufacture. Around 11,000 made and somewhere around 8000 still licensed and driving today.

Here's mine... I am restoring as I go... a little every year.

There are some quite nice GMC's available. Many have had frame off restorations some by companies for which it is their only business. The 77-78 models get as much as 12-14 mpg, they fit in a double parking space, drive like a van. They were built for boondocking (not being connected) so many of the standard features are quite power concious.

You can pay as much or as little as you want... $3000 if you are an excellent mechanic, woodworker, cabinet maker and automotive painter... $70,000 if you want one that compares to new deisel pushers (recent ebay sale, 3 plasma screens, leather and mohogony).

Here is a link to find them on ebay Ebay GMC Search