Mod my Rega P5 OR...time to move on ??


I`ve been enjoying a nice Rega P5 with Groovetracer upgrades (minus platter) but am thinking about a change now. 
Question: Should I add additional upgrades to this table like a better arm and a better platter or would I be further ahead just getting a different table ? 
I`m pretty set on my phono stage (Herron VTPH-1MC) and cartridge (ZYX AIRY 3) the room has been treated and the table is on a Rega rack. 

Thanks
Steve

 
 
scm
Post removed 
Just an update here.
I`ve added a Groovetracer Acrylic Platter with some very nice results, I like it much better than the glass/felt setup.
I also have an SRM Silent Base on the way.

BUT...Now I`m circling a brand new Rega RP10 with the Apheta 2 and I have a question for the members here:
If I decide to sell the Rega Apheta 2  brand new and unused what would be a reasonable asking price ??  
Because I have the feeling the Apheta isn`t in the same league as the ZYX I`m using right now.


Expect no more than 70% of cost of new Apheta (including discount when bought with table) if you try to sell.  With the Apheta there is no alignment to be set; will you need spacers with the ZYX?  The Apheta is a decent cartridge.  You can also buy the RP10 new w/o cartridge, save you some $$$.
I`ve started a new thread on the subject to get some other`s opinions on this.
Thanks Guys