Cartridge upgrade

I would like to suggest the Lyra Delos

Cadenza bronze appears to be quite popular will need to read up on it

Well, Denon 103 is also widely popular cartridge, but it's absolutely awful.
Popularity means nothing as much as the professional reviews. 

I've noticed that some people who likes modern cartridges never ever tried some of the the best vintage cartridges today in camparison to those overpriced modern ones. 

You may want to go to Soundsmith official website and read. I went with moving iron, started with Zephyr then moved up to Zephyr MIMC Star, had Zephyr retipped, and will get the Star retipped. They sound and track great. Super bang for the buck value. Using a Manley Chinook with vintage tubes.

@jimbones,

In general buying a new cartridge is to play it safe, but the pricing of top level MC's has recently gone completely out of control. And top prices do not necessarily amount to top sonics. 

Thankfully there are still some exceptions: $1500 will buy you a brand new Phasemation PP-300. If you're patient you might even find the earlier Phasemation or Phase Tech (previous brand name) P-3G (previous model name, but sonically identical) for under $1000.

For me the P-3G is an absolute 'steal' when considering new cartridges. It can hold its own against some very stiff competition around here. The synergy with an FR-64S tonearm is 'set and forget' and sounds almost as good as with an FR-7fz (which would also cost you around $1500 in 'previously cherished' condition).

If you're inclined to try your luck in the 'vintage MC arena', there are plenty of other fantastic options within your budget, even taking into account the cost for a retip.