So here's my list for those interested. I touched on it a bit above, but here's the official "upgrade" path. When you look at this the following is implied, that each step will bring better sound than the previous with the cost also being taken into consideration. These are MY opinions based on listening to all of these over time on MY gear. I can't bring myself to go near and or over the $1K mark.
Goldring E3 MM
Threaded body - Replaceable stylus
$170.00 (Stylus $125.00)
Grado Gold v3 MM
Nut and screw - Replaceable stylus
$260.00 (Stylus - Highly recommend replacing it with an 8MZ $175.00)
Grado Opus3 MM
Threaded body - High and Low Output available
$265 (Stylus - Factory replacement/exchange 20% discount)
Goldring 1042 MM
Threaded body - Replaceable stylus
$575.00 (Stylus $375.00)
Ortofon Quintet Blue MC
Threaded body
$525 (Stylus - Factory replacement/exchange 25% discount)
Hana SL MC
Nut and screw - High and Low Output available
$750 (Stylus - Factory replacement/exchange 30% discount)
Honorable Mention:
Ortofon Quintet Bronze MC
Threaded body
$840 (Stylus - Factory replacement/exchange 30% discount)
Great cart, but it didn't make the list based on sound quality and cost compared to the Hana SL sitting as my favorite. While sounding really good, the Hana, for me, has a better sound signature and a tab bit more warm. I couldn't justify the purchase price and upkeep cost compared to the Hana SL.