Why not instead just invest the same time, energy, and money creating link bait content that attracts great links?
Because you don't have to spend the same time and energy if you accept the increased risk. Plus, it used to be a substantial risk. By all appearances it's not much of a risk anymore. People have been doing this for years with no repurcussions.
I'm building high quality links, tough to do. They submit crappy articles and do blogs. Easy, repeatable stuff they can do 100 times for every one of my links. And it works. They spank me in the serps.
And while someone's moaning about the poor quality, they've been enjoying high sales for two years. If they get slapped tomorrow, you're going to go SEE! SEE! the got a penalty. And feel all justified. Meanwhile they're going to laugh their ass off at you because of the money they've got in the bank. They'll take that money, buy a new domain (or more likely have one ready to go) and start over again.
The point about dropped domains being easily identifiable is demonstratably incorrect. I see it work like a charm. I personally own dozens of pr4-pr6 dropped domains. As I've noted, they're now 2 year old pr4-pr6 domains. I'm not using them for anything yet - but they sure as sugar rank and get traffic.
I'm not suggesting this is a tactic the OP should use. But don't discount it over emotion, not when there's lots of people making money quite successfully. The only reason it's discounted is due to feelings that it's 'wrong' and quite frankly that emotion is misguided.
In addition, if you are a proponent of only 'good' quality backlink building techniques and snear at the others, you are quite frankly obtuse. Don't think that Google can't kick your butt to the curb for no reason at all - they can and do this. Uber white hat is no guarantee of ranking anymore - in fact I doubt it's anymore a guarantee of ranking than buying dropped domains. It's a foolish risk if you don't have multiple domains with multiple backlink profiles using multiple techniques. If you don't, then no matter how pure you think you are, one day you're going to wake up with your site gone.