I'll be upgrading to an AW11 or AWU3 from a stainless steel series 4 and the premium finish on my Series 4 has stood the test of time well - including a nasty fall while out running a couple of years ago (long story, I won't bore you). After 7 years my series 4 still has no visible scratches and the watch face is completely scratch free. I don't use cellular (tried it, but it's not for me) so the extra expense was quite simply for the nicer looking finish and the better durability. And it paid off for sure!
If my experience with my Series 4 is anything to go by it's titanium all the way for me. I'll keep my AW11 or AWU3 (decision still to be made which I go for) for at least 3 years and more likely to the end of the decade so the extra cost will be well worth it.
(In the UK the price difference between a titanium AW11 and an AWU3 is £0 making the decision between the two that much more tricky!)
If my experience with my Series 4 is anything to go by it's titanium all the way for me. I'll keep my AW11 or AWU3 (decision still to be made which I go for) for at least 3 years and more likely to the end of the decade so the extra cost will be well worth it.
(In the UK the price difference between a titanium AW11 and an AWU3 is £0 making the decision between the two that much more tricky!)