Advice needed

Hey folks.

Newbie here. Have a Victrola all in one which is fine for what it was but thinking about upgrading now.

If I bought something like a Fluance RT81, it seems way more sophisticated so had a couple of questions (perhaps stupid ha!)

Appreciate it depends on usage but How often do you need to replace to cartrdige / stylus (on average?) Does the belt need to be replaced over time also?