Interesting question. At the surface, yes absolutely. Audiophile tables and associated gear are a real step up ($5K level is trounced by $10k level, which is trounced by the $20K level, which… you get the idea. But..
You should be getting very good performance out of what you have. While at the budget / mid-fi side of things, it should sound better. This is where vinyl really gives digital the run for the money. I agree mostly with @newbee. Initial setup needs to be done right. I disagree about maintenance. There should be no maintenance in between cartridges.
Sounds like we agree on audio equipment. I don’t want to fiddle, just listen to music. That is what I do. I would not mod anything. I don’t touch it, except to use.
I recommend finding a competent dealer. Pay him to come out and optimize your system. I know the perfect guy if you live around Portland Oregon. I could see this being a “would you optimize”… “wow that sounds great”… “I’d like to upgrade”.
My rule of thumb is 2x to 3x cost. If I were you I would upgrade table… I used to have a low level Rega. It did not last long in my system. I now have a Linn LP12. I love the sound and the fact that I can do incremental upgrades to bring it up to a high end $30K table (mine is close). My dealer loves turntables… he loves setting them up, and knows exactly what it should sound like. If I want an upgrade he comes out (spends the afternoon chatting with me) and brings it back with upgrades, verifies it sounds perfect. Did I mention it is a good thing to have a good relationship with your dealer?