I used to use an Earlex...something or other.
It was the cheap one, mostly plastic. It did a rather good job of applying lacquer.
I have since scored an 80 gallon air compressor and a Sullivan-Palatek air dryer.
I use that now with a $50-$100 HVLP gun, along with assorted traditional spray guns.
My point is that the first setup ran about $150.00, and the current setup is well over a thousand.
The difference isn't that huge.
The main drawback with the Earlex is that it is more or less falling apart. The plastic parts.
The new system does have a few bells a whistles, atomizes a bit better, etc.
10x better? Well....
I think the HV5000 you are talking about has more metal parts.
Bang for the buck, I think it will serve you just fine.
James