I don't know whether to go for the DGX 630 or YDP 140. The CLPs are out of my price range. And the 160 is too expensive.
I just wanted some advice on which one to go for.
I want the most realistic feel and also the best sound which will also last a long time.
I think this is something you need to go and check out for yourself, ideally at the same time or very soon after each other if you have to go to another store.
Although the DGX has the GHS keyboard action which is very good anyway, the YDP140 has a better hammer action keyboard and - very probably - a better piano sample.
It really depends what you want it for.