The "new" stuff doesn't seem to be so cheap ~$150 gallon. What's the point?

I have a VW cabriolet I may resurrect and paint with this stuff:

http://www.tractorsupply.com/valspar-tractor-amp-implement-high-gloss-enamel-oliver-green-1-gal--3449693

they even have a hardener available for $15...

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