Upgrade from Rega Elys 2


I'm fairly new to the game - system includes a Rega P3, MoFi phono stage, Rega Brio, and Dynaudio Excite X18s. Essentially a desktop system. Looking for a possible upgrade from the Elys 2 cartridge that came as a package deal on the P3. Trying to stay around the $500 mark and wanting suggestions. Thanks. 
audiosavage1
Pear Audio tables/arms could be worth considering as well, they are in fact very much based on Nottingham design. I have not auditioned them but heard high praise, especially of their top of the line set-up.
oranfoster, thanks for the info.

Audiosalvage, I have a Herbies Mat on my P3-24. Very happy with it and the price is reasonable.
 
Got it - thanks ericsch. Inna - I'll keep that in mind going forward. I have a feeling that, as much as I like to listen, this will have a snowball effect, but rolling uphill (as cost goes).