Direct Drive or Belt

Hey all,

I have a question and wondered if the minds here could help.

Currently have an Old Pioneer PL-510a direct drive. I have rewired the head shell wires with new audioquest head shell wires. And use the Sure MX97e Cart. Sounds much better. I am using the Cambridge 640 and then playing into my Music Hall 25.2 amp. {Very Budget friendly :-)}

The local record shop has a few belt drives for sale. Fairly cheap.
1. Marantz 6200
2 NAD 5040.
and a few others.

My question is, would it be a step up at this point to try out a belt drive? {As in one of these models?}

The setup I have now sounds pretty darn good. But I am just not sure with the funds I have if its worth it to try one of these just for trying.

Thanks,

db