I noticed Best Buy and apple will give you $90 for the aluminum 5 as a trade in. Apple also offers same amount. I remember checking this last year and I was offered $75. this watch is 76% battery and doesnt last all day. The OS 10 update screwed it even more. is it worth keeping or is the $90 trade in a great limited time deal? you can buy a new 8 for $280 now or replace battery for $80.