Anyone make a mistake buying first MH ?

Did we make a mistake buying our first motor home? Yes, twice! Our first motorhome was a 24 foot Class C which was great until we invited my sister-in-law on a trip to the ocean. Since she was the dog sitter for our 2 golden retrievers, they also came along (3 aldults and 2 goldens in a 24 footer). It would not have been to bad except my sister-in-law and the dogs became permanent passengers. After 1 year, we traded the 24 footer in for a 30 foot Class C with a slide. The problem with the 30 footer was that we were at the alsolute weight limit and we kept having blowouts when traveling through the southwest in the summer. In addition, we finally realized that we would need a toad which would exceed the weight limits on the 30 footer. After 1 year we traded the 30 footer in for a 32 foot Class A with 1 slide which we like very much. We have enough room (we are not full timers), we can still fit into most national park campgrounds and we are 2500 pounds under the weight limit when fully loaded. We also like the bigger tires, hydraulic levelers, more room in the cab, larger front window, etc.