I am in the market for purchasing a laser engraver and saw cloudray. I am in the USA and I am debating between a 30W EasyMarker or AirMarker portable fiber. It looks like it uses the same bottom box. There is about a 700-800 premium to the AirMarker. Is there a reason for that or is it premium just for the compactness? Primarily I will be only marking plastic parts with serial numbers, QR codes. 30W maybe overkill but I would like the flexibility if I ever need higher wattage.