Golden Recommendations?

Hey so I'm looking to get my first 589nm handheld. I'm just looking for some info and recommendations for where I should get one. I know hat plenty of people here have a lot of experience with them so I'd love any input I can get!:)

I'd like to know:

Where is the best deal at?

What place has the sturdiest host?

What has the best stability in terms of laser output?

Which will have the longest lifespan?

If I bought one used what should I lookout for?

And anything else you think I should know?

Thanks a ton for any help you all can give me:D