When that 15 year old keyboard is a Roland g1000, I still would feel comfortable..

Our band still uses the MP3 backing tracks I made with the G1000...maybe 60 percent of our tracks are still G1000 based..

The biggest lacking sound is the better drums of the newer Rolands...but probably still on par with the competition's drums

I should redo the tracks with the G70 or even the BK5, but that is time consuming (we also record backing vocals)..The newer tracks would be hard to beat with my newer gear....but for now...15 year old Roland still covers the bases...