My Genesis gave me 12 years of troublefree, heavy use. I just put new guts throughout and will count on another 12 years! Can't beat that.
I have a UDS (new) a 22.5" OTG and the Genesis. So far, it looks like they will all get used pretty equally. However, I'd consider modding the UDS for grilling and selling off my OTG. It's a shame though....I just bought the OTG.
I couldn't be without the Genesis for those rushed workday evenings when I just want a quick chicken breast or burger.