Nice box
My father-in-law is a franchise dealer for Snap-on. I get to see what the quailty is of the boxes after use. The snap-on ones ARE worth the extra cost with powdercoat, ball bearings, HD casters, better locks/locking system. The used snap-on ones are always in better shape. Mac has a nice box aswell but you can tell the diff. in the two after some use. The craftsman (he calls them crapsman

) ones are lucky to make it home without falling apart.
I get to play with alot of cool stuff...and use the nice stuff if I need too. I have asked to buy some stuff and he just says "just barrow mine".
He is the first to say craftsman is worth it to a home mech. as far as hand tools go for the most part but if your doing it for a living that is when the quality stands out.
I hope to get some stuff from him down the road prob. buy a used box off him at some point and replace my sockets as some are getting sorry. Got a 18v cordless impact a few years ago for my birthday or xmas...and that sucker is wicked.