Hello guys

I am a student who has been djing for fun.
I am currently using a ddj sx for more than a year now and ever since I really got into it, I started to notice that the device that I am using starts to lack in function. Such as color fx and jog wheel feelings. I have tried cdj 2000 couple months ago and ever since that, I feel like the jog wheels on sx are so much smaller and feels less manipulatable.
Couple days ago I saw that DDJ RZ came out and I think it looks magnificent as well as that pad fx.
If I can afford it, should I upgrade it?
Should I sell my SX and get RZ or should I keep both?