Originally Posted by Xdanisx
Has quality gone up at all with higher end paint?
Depends what your measurement of quality is. By some reckoning the current "best" shell in the industry is the RPS Advantage shell, which was introduced about 10 years ago. However the marking fills in modern top end paints were not around 10 years ago.
The formulas of today's paints for sure differ from past paints, from the same manufacturer, let alone <10 year old manufacturers. Whether that is considered a certain level of "quality" is up for debate -- there is no objective standard.