Over the past 30 years I have owned at least a couple of dozen Fender Precision and Jazz basses. Starting with Japanese Squires (with the large Fender decal) then Japanese Fenders through to USA models including the original Elites. I now own one Mexican Reggie Hamilton Jazz and a Japanese P-Lyte as my only active Fenders, all others have been gradually swapped out for 2008 and later American Standard and Custom Shop models.
In my experience the 2008+ American standard is consistently the best Fender has produced but we are talking about diminishing returns here. Spending another £300+ over a Mexican won't get you a bass massively better and maybe won't even sound better (might be different but better is a matter of taste). But what you will get in my experience only, is better timbers, hardware, fit and finish, hardcase and tools that make it worth the premium.