With respect, sub $500, spells regrets, if you are hoping to be at all serious, and with no previous laser experience, with your aims.
It's been explained above well enough!
Consdider looking locally for 2nd hand, where the seller can show you it working.
And find out why they are selling it...!
Best wishes,
Ian
ULS M-300, 55w made 2002 with rotary. Goldenlaser 130 watt, 1300x700 made 2011.
Flat bed 2500x1300 150/90watt 2 tube laser, 2018 model.
Esab router, 1989, 4.5 x 2.0 m, conv. to Tekcel, and modded a 2nd time.
HP L260-60". Roland PNC-1410. Mimaki GC-130 SU.
Screenprinting carousel 6x4 and 7x4 ft 1-arm bandit vac table.
Corel Draw X3, Illy, Indesign & Photoshop CS2 & CS5, Enroute 4
Pencil, paper, paintbrush, airbrush & dagger-liners & assorted other stuff.