Vintage Dual 1228 Turntable : worth to upgrade cartridge ?


I have from my college days (1977) Dual 1228 with original fitted Shure M95ED cartridge .  It is maintained well , not used for about 20 years in between , but just cleaned , lubricated , resoldered some loose connections , etc and just runs great for me. 
I am not too much into analogue , so not planning to do big time investment into new TT , Phono preamp , but if  can get larger benefit by replacing the Shure M 95 ED with some new cart upto $ 200-300 , I would like to do it . 
My Phono preamp is very low end Cambridge Audio MM 551P . To go with new upgraded cartridge , I may even consider to buy used Phono with budget of $1000 . 
I would appreciate advice form FMs here , where I should spend my money to get most benifit on sound improvement . New cart , new phono ? 

radni
Radni,

I only have one Dual cartridge alignment jig left.  If you want to send me your mounted cartridge I would be happy yo align it for you (I'll take photos) and send it right back.  My email is [email protected]

Or, I will loan the jig to you if you promise to send it back.

Norman
Radni,

The JICO is a very good stylus.. You'll be happy with it. Ed Saunders also makes an excellent replacement for the Shure.

N. 

Reg replacing the faulty capacitor in power supply side of Dual 1228:
I have not  opened the TT yet as I am traveling . But from search it appears that it is a capacitor of value 0.068 uf / 250 v . In this value there is hardly any availability, or very limited . My question is , can I not use slightly higher value cap of say , 0.1 uf of 250 v or 400v or 630v ? Reg higher voltage it is safe to use, but can I use 0.1 uf in place of 0.068 uf ? I guess , as the cap is in power supply line it should be ok to use slightly higher value of capacitance , only it can help , but cannot harm . In 0.1 uf , there are many options available.
Can anyone confirm if I can use .1 uf in place of .068 uf ?
Thanks
Norman,

I stand by what I posted.....a 1228 (or 1229) is a good, not great table.  Easily bettered by a LINN.  The Dual was not designed to be better than a Thorens 124, or Garrard 301/401, or a Lenco.  It is what it is.  As stated I have extensive experience with Dual tables (and Thorens, and now LINN).

Your experience is different than mine, but your disagreement does not automatically render my experience any less valid than yours.

As for the link you posted, I take AS opinions with a very large helping of salt.

I would encourage the original poster to investigate other tables, and discover what sounds best to HIM.  My wager is that it will not be a DUAL....
Norman,I just a few weeks ago got a Dual 1219 at local auction with original box,all packing,foam,even alignment tool still in box.I just got it working properly.What an incredible find,like going back 50 years ago buying new in box.
I also did some listening on my P+E2040 last night with some startling simple tweeks.I ran my Fulton Kinetic barrier mat and experimented with brass weights on the deck,I put a cheap piece from audio advisor rubber vibration control under a brass balance weight in back by the arm.What an upgrade from so little money.Big increase in sound field height.Again a new found respect for my old P+E .