Hello and welcome to the forum....
The short answer to your question is only you will know, depending on your available cash....
I have an older Axi Perform lathe with the belt adjust and tbh I have never changed the speed, much like my pillar drill...yes I know I can/ could but it works as is...so do I need an easier variable speed gizmo?
If price is an issue and you must have all the bells and whistles check out E bay Axminster sell off their returns as do disillusioned turners. Most good makes are robustly built these days 
