Value wise, the 640P is hard to beat, if you had nothing right now. It's a good earner, I'll keep mine around if I upgrade just because it was a solid buy. Although, the improvement may not be worthy of the additonal cost for you.
Another thing you may want to consider is a different stylus when it comes time. There is romm to grow on that cartridge body. That is what I did after the 640P had been around for a while and it was a big improvement.
Another thing you may want to consider is a different stylus when it comes time. There is romm to grow on that cartridge body. That is what I did after the 640P had been around for a while and it was a big improvement.