Bill, I played PSR2000, VA5 and PA80, and I think there is a difference.
A lot people says piano sound on PSR2000 is good, but for my ears is not so good... I like its winds, strings.., but not its piano sound: VA5 is better, better (48 Mb for sounds, PSR2000 only 16 Mb).
PSR2000 keys are terrible, cheap plastic, like a toy; VA5 keys are another world.
PSR2000 styles are not so rich as Roland or Korg, (but more flexible, it is true).
At the end... PSR is a nice machine, and its screen is beautiful and easy. But sorry, I don't like its plastic colour, its keys... some of its sounds and styles.
Perhaps VA5, cheaper now, will be a best buy (if you needn't vocal harmonizer). And if money it is a problem, new EM-55 from Roland (same price as PSR1000) perhaps will have its chance to see.
Sorry, but it is my feeling.
Godwald