I think harbor freight has these for around 199, I'm thinking of going this route myself.I have a 10x20 canvas carport that was there when I bought my house. I have seen them going for anywhere from 120$ to 3-400$. It isn't 100% protection but it is enough to keep bird droppings and most pollen off the truck and provide a little hail protection. LOVE it because the truck will sometimes sit for a few days and when I didn't used to have anything over it I was always wiping bird crap off.
Mine is anchored to the ground on two of the posts, secured to a fence post on each side with heavy duty zip ties, and wedged in between my fence and garage so I don't have any real problems with wind. If I lived anywhere that regularly got crazy winds I would probably look at other options like spend a few thousand on a metal one anchored in cement or built into the side of a structure. But it is a good option for my weather conditions.
I am in the same boat as the OP. I work in the city and take the train so unfortunately my truck sits all week and only gets used on the weekends. The bird crap is destroying my black paint. Does anyone use a car cover and if so can they make a recommendation?I have a 2013 Toyota Tundra CrewMax that sits outside because it won't fit in the garage... Any recommendations on one? One's yall have/or are still using that withstand the different and abrupt weather changes of Texas...