shopsmith 510 vs 520 upgrade

[eagleta2]

Hi guys

I am hoping that I'll be able to enjoy a bit of a Christmas bonus...and was thinking of upgrading my 510 to a 520.

What do you guys think? Is it a worthwhile upgrade?

I would be upgrading from a late 80's or early 90's markv 500 that was later updated to 510. Does that make any difference when considering the 520 upgrade?

Is it worth the price tag to go new or would I be better of looking for a used 520?

Thanks for sharing your opinions!

Geo