Unfortunately the original creators have abandoned the project, but fortunately it's completely open source so it's still buildable. Mine cost about $7k for the parts and all the accessories I had to get along with it, but I think that there's a lot of low-hanging fruit in someone going through and updating a lot of the more expensive parts in the BOM. I saved about $2k by doing so and put together a spreadsheet linked to from [1], but there's definitely still room to upgrade the steppers to something cheaper and more powerful, etc. There was a good discussion in the mailing list[3] a few weeks ago about whether it still makes sense in 2020 to build a Lasersaur. I'm personally of the opinion that if you want a laser cutter for the purpose of creating stuff with it, the best option is going to be getting a Chinese cutter, doing a few upgrades, and buying Lightburn as your software interface. But if you want the experience of building / intimately knowing the machine and find that rewarding in and of itself, go for it.
[1] https://theshamblog.com/a-tour-of-the-lasersaur-laser-cutter...
[2] https://github.com/scottshambaugh/driveboardapp
[3] https://groups.google.com/forum/#!topic/lasersaur/Ieu6aAG_0s...