Is there a big difference between the "Adrian Smith Signature San Dimas® DK- Made in USA" and "Adrian Smith Signature SDX".

Well, I know that the pickups and Floyd Rose are different... but besides that. What about the ones with maple necks... is there a big difference regarding the neck?

Can anybody tell me why should I buy the pricier one?

I bought it,but only because i had the money for it,maybe the cheaper goes as well did my-87 mij Charvel 2..

I would just assume the cheaper one is made in India (cause it's part of the X-series I think? ) and the pricier one will be made in the USA, so there will be difference in build quality....whether it's worth the extra money is up to you I've played an X-series King V and they seemed pretty awesome for the price And I plan on buying it :p lol