I'd much rather one polite ad in a workshop forum about CNC lasers than fifty spams about suspect deals on Nike shoes in twelve different forums.
I know Adafruit was offering laser-cutting services very early on, and is also one of the leading hobby-hack-electronics vendors. If anyone else is running a small PCB service, having a laser-cutter or engraver on-site is a great addition. I have used Pololu once, and the final product (cut acrylic) was far better than I expected.