I like the open for it's versatility. You can use it for mowing or hauling mulch, topsoil, branches, etc, while the enclosed is more limited. Again it depends on your situation. The enclosed is more money, but offers security, a place to advertise, and an equipment storage area. The open trailer is cheaper, more versatile, but needs to be put somewhere if you plan tto leave your equipment on it. If all I ever did was mow lawns, I'd get an enclosed in a heartbeat, as I think they look very professional. But, I like to do my own hauling (the haulers never seem to be able to accomadate my schedule) and I need to be able to put my trailer out of sight at night (covenants). Think about what will work best for your business. I almost bought an enclosed but it would have been a big mistake for my operation. Let us know what you decide