I've had both. 1. I stand at the door, on the ground, and reach in to the right and grab my string trimmer or edger, no problem. My BP blower is right beside that, hanging on a hook. I simply step up, grab it, throw it on. I don't release any holder, undo padlocks, nothing. I don't see what's so hard. And, time savings is negligible. 2. I pull up to the pump, drop the rear door, and fuel both sides of my mower. If you're a multiple ZTR/stander situation, order or install a fuel door. That's a negative, depending on your operation. For me, it's not. 3. How so? I've got mirrors. I use them and have yet to have an issue backing my trailer. If you can't drive, then, it's going to be a problem. 4. In an urban environ, it makes no difference. On the highway, the difference is going to be negligible, because that huge gate on the back of a open trailer catches a lot of wind, as do the various pieces of equipment and HH racks. On windy days, I could really feel everything catching wind. I got crap mileage, with an open trailer, too. You don't need a 3/4T truck. You followed your initial statement with no proof or argument. The beginning of your second sentence sets up your general, negative attitude toward enclosed, again, with no argument. If you don't like them, that's fine. But, at least state your reasoning why. BTW, my truck and enclosed fit into my garage and shop, respectively. To the OP, a 6'X12' isn't enough trailer, IMHO. You need 7' width to fit larger decks, like a 60". The interior width of a trailer is narrower than advertised width. The rear door opening is even narrower. Also, you need room to move around inside, when things are loaded. You don't need huge, but, definitely need adequate size. I've had a couple guys with larger trailers say they wish they had my setup, just because of space, cost, and setup efficiency. You need trailer brakes. I've had trailers with and without. Brakes make a huge difference. I'll never own another without them. Consider a V-nose, as it adds quite a bit of floor space and room up front. I'd recommend a 5,000lb axle, as basic necessities add up faster than you think. With my setup, 30" pusher, and 60" ZTR, I'm at 3720lbs on the trailer axle. You can't beat the security and convenience of an enclosed. It's nice to not have to worry about someone stealing equipment, while I'm at the back of a property. I have one place where I end up ~3mi away from my truck/trailer. It's nice when something needs addressed at a property and I simply go to the trailer and grab whatever tool it is I need. Customers appreciate it, too. The advertising space will more than pay for the additional cost over open. My number one source of additional business has been the signage on my trailer. Pay the extra ~$50 and get a color-matched trailer. It adds so much to the appearance of the operation. I continually get compliments on my rig.