As the name suggests, laser projectors use concentrated light sources instead of the traditional high-intensity lamps used by older models. In terms of performance and durability, laser projectors are much better than the traditional models. First of all, projector lamps tend to lose around 50% of their original brightness after around 2500 to 5000 working hours, which usually means they have to be replaced by new ones. In contrast, after the same amount of time, laser projectors lose only 10% of their brightness, and that is already a high estimate. Another advantage that laser projectors have over lamps is they do not need to be calibrated as often. Even after 10,000 working hours, the color saturation of laser projectors would roughly be the same as when it was brand new.
Price-wise, laser projectors are more expensive than lamp projectors. Laser projectors tend to cost a thousand dollars more than their lamp-lit counterparts. However, if you factor the cost of replacement parts and labor, you will find that laser projectors are more cost effective. If you can manage to shoulder the higher initial investment, it is better if you choose to go with laser projectors as they are more durable, and they perform much better than lamp projectors.