Upgrading my beginner setup and not sure how to allocate funds. New cart, table or amp?


Current setup:
Integrated amp: NAD 3020 (has phono stage)
Turntable: AT-PL120 (with stock ATP2 cart) (nb: this is the early non-USB version)
Speakers: Triangle Titus

Hey, all!

I am thinking of doing some upgrading as vinyl has become my primary medium for listening and I am not sure if I should replace my turntable, the cartridge (which hasn't been replaced in 10 yrs) or my amp. I am looking to spend roughly $1500, though could maybe spend more if I stagger my purchases (i.e. buy a new cart now, buy an amp later, etc.).

I am curious where you think I should allocate the $$ to improve my system. New headshell and cart? New table altogether? New integrated amp? Do I start using a phono stage w/ a new amp? I am admittedly not a "tinkerer" and so I am looking for something that won't require a lot of individual upgrades (though I am excited about maybe swapping out carts eventually).

Possible TT: Rega P2 or P3, Technics 1200GR or 1210GR (both Technics stretch the budget a bit)
Possible Preamps: Phonomena II+, something Music Hall? Marantz? New NAD?
Possible carts for AT-PL120: Ortofon 2M Blue? something from Shure?
knotgreen
Your first step should be replacing that ten year old cartridge. BTW, Shure does not make cartridges anymore!
I don't disagree, but I also don't want to sink a bunch of money into a new cartridge if I'm upgrading the turntable anyway. 
Go for the Rega P2 and put an Ortofon 2M Black in it. That will make you a really happy camper. 
No. Get the Technics 1200GR and a Nagaoka MP110. Always get the best source you can afford. Save for a few more weeks, max the card! Then you won’t have to worry about the front end when you go to replace the amp. If you get a lower-end table, you’ll be playing catch-up when you upgrade the amp.