I've never gotten a car painted at Econo.. I don't know how much "single staged" paint vs "base clear" costs at cheaper paint establishments and unless I misread, I don't think it was mentioned in his text what exactly was done (in detail) in terms of the job.
What I do know is they mix there materials in very large quantities, I was just suggesting a way to keep the paint from reaching even earlier oxidation being it's a 230 dollar job... was just trying to help.