Inexpensive spray rigs can have some annoying features that make them a false economy: 1. bleeder guns; the air is always flowing out even when you're not spraying (a feature of low cost HVLP turbine kits) so it will dry out whatever's on the exterior of the nozzle and will blast air and dust everywhere you aim (and even more whre you don't aim). Non-bleeder guns are found in better quality hvlp turbine setups. 2. non-adjustable air cap: less expensive guns don't have a way to move the air-cap in and out; better guns allow you to control how much the fan is being flattened and how large or small the cone is 3. choice of needle/nozzle sizes: readily available choices of needle/nozzle sizes let you go back and forth between very thin dyes in alcohol, or finishes with some body to them like lacquer or shellac, or heavier bodied materials like waterborne emulsions or even thick latex paint. I would say that unless you have environmental regulations that require industrial applications to use LVLP or HVLP, you can save money by getting a better spray gun without that feature. But you'll never run any spray gun on a litttle pancake compressor because it won't have sufficient CFM output. and HVLP conversion guns or LTE guns require a lot more air from the compressor than conventional spray guns do.