36T works perfectly for us. Since we have not too much clearance, I sometimes like the little extra space of a smaller chainring
(when rolling over some "sharp bumps").
When building our bike I experimented also with 38T and I really doubt whether one can sense a difference in torque between 36 and 38...

...and if the 36T chainring is only 10% cheaper than the 38T, the (theoretically) bigger wear is definitely overcompensated ;-)