This depends on your position. If you are a novice and want to open a lettering shop, I suggest you buy a machine for about 8000 yuan. The machines at this price are: Tian Kai Small Carving Treasure, Zhong Yi, Yin Daxin Laser Engraving Machine with protection. These three machines are a little cheaper than Tian Kai, and the prices in Zhong Yi and Yin Da are similar, but Yin Da has several layers of protection functions. If you are an old hand, you have a laser engraving machine. But there are too many machines with inferior brands in the past two years. I use the Jinhe engraving machine in my shop. It took four years, and a data cable and two laser tubes were changed. Everything else is fine, but you should pay attention to maintenance at ordinary times. The most important thing is not to have too much water. When ordering machines, it is better to ask the manufacturer to add a few hundred yuan and send an extra set of motherboards and power boards. If there are any defects, you can correct them yourself. I hope I can help you.