They key to protecting any kind of gear is keeping it at home.
Everything I bring to the playa I assume will be destroyed. I bring nothing there I would be bummed about losing. Think really hard about that.
That being said I've had things last for years after the playa and also things die in 10 minutes of getting there. I had a video projector at Xara run for 7 days with an open ceiling (!) and It came home (barely) still working.
In 2005 at the corner SW of Gigsville we built the Zendovibe where we had a large amount of sealed carports linked and carpeted with a Dj booth that we enclosed completely in clear plastic. We literally had a large-gauge PVC cube around the turntables/dj/storage that was wrapped in some sort of large, fairly clear, food-wrap type stuff. We also had an air compressor inside, and a low-tech airlock. The opening of the space was a spiral entrance with the eventual opening opposite the windward side. I tell you, when inside the DJ booth, you could run your finger across a record and see no dust. Please understand that this is crazy. This could never happen. If I didn't experience it first hand , I wouldn't believe it now. We were spinning vinyl in there and it was dustless. You couldn't see the dj that clearly from the outside- he was kind of blurred in there, and dj / crowd interaction was a little less than average, but it was CLEAN. I do NOT recommend doing this. It was a pain, but It was clean!
Every other year I've essentially destroyed things. You will never get that new black metal look, it will always be a little dusty white. Some dust will get down in the circuits and eventually mess something up. If you can't live without it, don't bring it. If it's not yours or a rental, don't bring it. If you can buy another one, bring 2- we need an extra one.
ps. When you get home. Clean the crap out of everything with vinegar/water/soap. Blow it out. You will never really get it clean, but if it sits around for another burn soaking in playa you will probably be throwing it out next time.