Upgrade Tonearm for VPI Aries 3

I have an Aries 3 turntable with JMW 10.5i tonearm.
I bought it new 7-8 years back.

I would like to upgrade the tonearm any suggestions ?
I use a Dynavector XX-2 Cartridge and I'll spend up to $3500 new or used.

I like the sound with the 10.5i but will upgrading the tonearm improve the sound ?

As time goes on I listen to more vinyl , almost every night.
Would it be better to purchase a used turntable with tonearm for $6000 ?

Thanks any input appreciated.