I'll agree that the HF boxes aren't up to the same quality as anything Snap On, unless the Heritage stuff is total, complete (comparatively, anyway) ****. However, I stand by my opinion that the Classic and Heritage series are the worst value they offer, both at list price and at a realistic "deal" new price. Think of it like you're buying 2 different things... a toolbox, and a name. The name seems to cost proportionally more compared to the toolbox the lower you go in the lineup. I'd say there's a definite quality difference there, but not a $2000 one, and definitely not a $3000-4000 one.
That said, a Classic series to a HF 72" is comparing apples to donuts. One's made in the US, and is a 24" deep box, so you should be getting a valuable 2"+ in drawer depth with the Snappy. Depending on your preference, the 72" triple bank vs. double bank could be a pro or con, but the HF only has the single wide drawer. But, if you make a more fair comparison like an Extreme/Viper/Montezuma, the price and quality gap both narrow a lot.
Personally, I think if you go used or finagle a deal, a Masters series is a damn good value in high-quality storage. KRAs are too expensive for what they are, and Epiqs don't add enough IMO for the price they command... although I'll admit I'm not too knowledgeable on what a "good deal" on one is since they were never really in my price range. As my boss likes to put it, "I don't care if it's a $40,000 _______ for $4,000, it doesn't matter if you don't even have $40."

On that same note, if I were looking to only spend $1,000 on a 72" box, I'd be looking at the HF.