Secondly, a link on a TechCrunch post is by no means a high PR link for any decent length of time. You MIGHT get your link on their front page for a few hours before it rolls off into the archival abyss. Maybe if you're lucky, over time and with enough inbounds link to that post, you'll get some juice out of it.

I guess my point, which was lost because I didn't clarify well, is that a link from TC (in terms of traffic or SEO purposes) is probably overrated.