J.G.
I have a rainbow play system. No clue if they sell them in CA, but I plan on my kids getting use out of it for 15 years. We got it from a family that's daughter just stopped swinging on it, and she was 12. It has two forts, two slides, two swings, plus a glider, etc.
I got mine free. We just had to take it apart and move it. We then spent 2k replacing wood and on rubber mulch. Rubber mulch is the way to go, it doesn't rot, smell, there are no bugs in it, etc. And it acts like a giant sand pit my son likes to shovel in. It only cost a few hundred more than wood mulch, but it lasts 8 years. So worth the money.