If you're not looking for all the crazy flasher options (which I think are SO over the top) then there is a thread on creating your own stadium lights. I own a set of PS that I bought back when they first came out and they're in my RZ. I like them, but especially for just playfield lighting, they're insanely priced.
Based on the thread, I bought all the materials to build my own and I have enough parts to build 4 full sets and lots of extra common parts to build several more partial sets. All this cost me less than a single set of PS. I think it will work out to $60+ per set with full RGB+W wifi control. If you would rather pay a premium for a drop in solution, then PS has you covered.
I'm usually a "pay someone to do it for me" kinda guy with these DIY solutions, but I don't want any stadium flashers, and I could buy at least one, maybe two additional pinball machines for what PS in all my games would cost.