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If you clean stuff and replace your chain often enough it all last ages.
That's what I mean, the chain wear out noticably quicker than the 10 speed.
I've replaced the chains five time this years on the 11 speed bike (twice on 10 speed, and 8 speed every 1.5-2 years)*, in the end I gave up and just let it wear out and replace when necessary as ironically it's cheaper to just replace chain/cassette once/twice a years than chains.
*all have similar mileage.
Just bear in mind that the 11 speed doesn't last as long as even 10 speed, so take that in account with commuting.