I have Variax600 that I bought 6 years ago. I have played it so much that I need to have the frets changed, if I want to keep on using it. But recently it happened that the first string was really low in its ouput. The problem came and went over a few days but then disappeared and has not come back since. Almost like a cold! What could the reason be and what could it cost to have it fixed, if it comes back, now that the warranty is probably long overdue? To get new frets (this time stainless steel to make them last) would cost me the equivalent of 470 USD, whereas a used JTV-89 (if it is not already sold) would cost 620 USD. A ridiculous point in my considerations: I like the look of my Variax, but the used JTV-89 says"you play metal on me" with its design, which I could get over with some disciplin....