Laser Cutter Recommendations

Considering getting a Glowforge or some type of laser cutter. My issue is that it is so expensive and I am unsure if I want to go the laser cutter route. Is there maybe a cheaper option out there as like a trial product before I drop thousands of dollars?

New to glow forge it still in box Laugh Out Loud

I seen can engrave on phone iPad etc how do you know how deep to set it so it dont ruin your phone or iPad?