I think it's pretty hard to differentiate Alex Schoknecht and Jeremiah Cohick. I mean, they both talk about being switchers and their dads not willing to switch. They're the same age and sex, as well. I personally hoped Apple would try something new rather than just mentioning the same just with another person.
I do like the ad, however, and the funny thing is, I'm in pretty much the same situation myself (although I've never had a PeeCee). I guess there are lots of similar potential customers (switchers with unenlightened dads) out there, which probably is why Apple is emphasizing this a bit. As long as Apple has today's market share, recommendation is still the most effective advertising method, IMHO.