I've just had my car repainted, full respray including, boot shut, door shuts and the top half of the engine bay. I did all the stripping and rebuilding, so delivered the car as a rolling shell with all major components removed. They then supplied it back in the same state.
It weighed in at over £2k

but it was worth every penny, a truly stunning job
At the end of the day, you gets what you pays for.
If you pay less, they will spend less time on it and use cheaper materials, you spend more, they will hopefully spend more time and use better materials
Paul