10 speed lasts well enough.
In 1 year, (including 100k in a day, passportes) 25+ km a week in the peaks finest mud and grit, i went through one cassette and 2 chains.
I change my gear cable every couple of months, i never get poor shifting, i’m not even on the best of equipment either (according to forums), sram x7.
The only people that think 10 speed will wear out in the week are the ones who are very poor “armchair engineers” who don’t even know the difference in dimensions between 9 and 10 speed drive. Also factor in shimano are running closer to a 1:1 actuation ratio on 10 speed stuff, plus the fact stuff has got simply better, shifting is pretty awesome, pretty much all the time.
I am 1×10, 32-11/36. I don’t miss a granny. My current bike is 33lb (6″/dropper/strong build), i demoed a 27lb carbon pivot 5.7, that had a granny ring. On the climbs it wasn’t “this granny ring makes things nice and easy” it was “this isn’t any easier but it’s taking longer”. I can see the advantage of a granny ring on slow, technical, seated climbs, but not in terms of whether you haven’t a easy enough gear for general riding.