Math fail.

Snap on, $125, Sears $70, on sale today at $60
$125-$70=$55 (Regular price)
$125-$60=$65 (current Sears sale price)
The individual taps and dies are all listed on snap-on's website, and I couldn't find one that was more than $5 (except the thread files @ $14/ea).
Do they really dull/break that easily? The cheap HF set I bought just to have something quick until I had the cash flow to replace it with something better, has lasted three years without breaking one yet (one or two are starting to dull a little bit). Mind don't see daily use. Maybe once a week, on average.
I do like the idea of being able to warranty them easily if they're dull. If I had a dull one, I'd eventually end up breaking it off inside a piece of work. That always makes for a fun day...