A bit off-topic, but i find the Plans & Pricing page to be a very good example of how to design for an attention-lacking crowd, i.e. most web users. In particular, the team-size icons is a rare example of using eye-candy to succinctly help in clarifying for whom each package is tailored. Or maybe i am just easily excited today!

If anything, i would invert the per-person price with the overall price in order to give emphasis to "more people is actually cheaper". There is something in descending prices that makes people feel good.