If you can get the SAMI for a good price (even better-free) go for it. I had a 7.5'-8' for may years (1994 to 2005) and it never gave me a minutes trouble. The mesh even withstood a torrential hailstorm that beat the shutters and window trim off of our house. The hail hit so hard it cut off lillies and banana trees we had in the yard. It did have some minor dings in the mesh which didn't appear to affect picture quality. My eleven year old also bragged recently how he used to sit in my SAMI (I was never aware of this before!)
I just wanted to say that if their 10's are built as solidly as their 8 foot, I would personally recommend it. Superior Antenna Manufacturing Inc. I believe they are built (or were) in Arkansas., USA.
Also, if you get the 10', put at least 1/3 of the pole in the ground, plumb it perfectly, and use plenty of concrete (several bags). Good luck.