I remember watching one of Vorsprung Suspension's videos where Steve, the owner, said that he highly encourages a rider to play around with the suspension tuning option they have before they consider getting a custom tune from Vorsprung. His reasoning is that you will either a: find the feel you are looking for with what you have, or b: you will know what it is about your current set up that you want to change but that your current set up won't allow. I think this approach also applies to upgrades. I'll give you an example from my experience.
I currently own a 2015 Knolly Warden Alloy in size medium with a pike RC and a CCDB Air CS. I've got the fork dialed, so I feel no reason to get it tuned or changed out. The shock is another story. I can get it to either feel good and supportive for jumping and pumping but harsh in rocky terrain, or to feel very nice through the rocks but dead to pumping and jumping. This is primarily a spring (support) problem, not a dampening (energy management) one. To fix this problem I need to have more support at the beginning stroke and comparatively less support at the end stroke. I have two options to achieve this; I can get an eXtra Volume (XV) air can so i can use more travel with less sag, or, I can get a coil sprung shock with it's linear spring rate. I'll probably go with the XV Air Can because (if I can still find one) it will cost less and weigh less than getting a whole new shock. However, it took me a number of rides and lots of trying different tuning/setup changes to narrow down to the real issue I wanted to fix.
See as your profile says you live in Idaho, and winter will shortly arrive here, perhaps you should spend some time watching the videos that Vorsprung has on YouTube. They completed upgraded my brain for setting up my suspension, and what you learn from them, plus what you learn from applying that knowledge this spring will help you make the best decision for how to spend that bonus.
Sorry for the long post, I just want to be as helpful as I can for you, and anyone else who reads this forum thread. If we aren't building each other up we are tearing our sport down!