Yet another (former) Casita owner here. We bought our FD new and picked it up in Texas in 2005. We had a blast with it for almost 8 years, it was hard to let it go but somehow ours started to shrink too! We had looked at the 19, more storage, smaller bathroom, crawl over bed, hmmm. Saw the 21 at Bandon and, as John said - it was perfect (for us). Good luck on you're choice, bet the new 5.0 is going to be a beauty too! Escape makes a top quality product, don't think you can go wrong and we have definitely felt the same camaraderie here as on the Casita forums.