Desktop diode laser engravers have crossed into impulse-purchase territory during sale events, and the marketing has gotten ahead of the physics. They are genuinely capable machines — but what they are capable of is narrower than the product photos suggest.
Engraving: excellent. Wood, leather, cardboard, slate, anodized aluminum, and coated metals take crisp, detailed engraving at even 5–10W of optical power. Cutting: situational. Thin plywood, balsa, felt, and cardstock cut fine; expect multiple passes beyond 3–5mm. Clear acrylic and bare metal are largely off the table — diode wavelengths pass through or reflect off them. If your project list is mostly cutting thick material, you want a CO2 machine, which is a different budget class entirely.
The category discounts aggressively — 25–35% off during major events is routine, so never pay list. Prior-generation models from established makers are the value play when a new version launches; the software ecosystem and replacement parts matter more over two years of ownership than a 10% power bump. Budget another $50–100 for materials, goggles, and a fire-safe work surface, and treat the first month as tuition.