Jack, believe it or not the longer the trailer the eaiser it is to handle ...up to a point. If you've ever tried to back say... a small lawn tractor with a cart hitched to the back you'll know what I mean. The smaller the trailer the eaiser it is to jack-knife it when backing. There may not be a huge difference between the 19 and 23 but there's going to be some. A 23 is a piece of cake to handle and you'll welcome the extra space. People with 19's are going to defend their decision and rightly so, but if you just talking 3 feet go with the larger unit. If it were the difference between the 19 and 30 footer, I'd say go with the 19. Once you've camped for a`few days a little moving around room is a blessing especially on days that it rains. You've gotta go with what'll make you happy but for my money it would be the 23'... at a minimum.