"Starter" lasers?

I recently picked up a Sanwu 304 (532nm ~80mW) laser. It cost me ~$25 with shipping and has brought me a ton of joy so far. I'm interested in picking up similarly awesome budget lasers in other colors. I know there are a lot of good deals on places like FastTech and GearBest, but it's so hard to separate the wheat from the chaff on sites like that. I've had some cheap eBay / DX lasers before, but they all gave up the ghost after only a few days of playing with them. Can anyone recommend any particular lasers at the sub-$40 price point for 405nm, 445nm, 520nm, 638nm, or 650nm? Or anything else that's available at that price point and interesting. :)

I'm more interested in decent beam specs (relatively narrow, low divergence) than I am in power. I mostly use my lasers for sky pointing and looking at the beams at night. I know green is going to be hard to beat for visibility, but I'm interested in some other colors at a reasonable price point.

Thanks!