Vano, if you say that there has been no improvement in drum sounds from VA to G-70, I can agree with you, but if you say that G-1000 drum sounds are much better that G-70 I think that you are missing the big improvements in drum kit sound reality that V-xxxx drum sets have if compared with G-1000, and that is recognized by a lot of VA users.
Anyway, if you are still satisfied of your G-1000, hold on with it and be happy.