I wouldn't have a problem with his size IF the price tag reflected it properly. While this is obviously bulkier than the regular 1:4 DC PFs, it shouldn't have been 600$, especially considering that sculpt and paint apps are very simple. For this price tag he should have the current measures but on a nearly flat base, more or less like Lobo.
Lobo was a steal when compared to Darkseid. You got 2 heads, 2 switch out hands, an extra hook, and mixed media all for less than Darkseid. I'd hate to see what they'd price Lobo at if he was put up for PO nowadays.