i did all my auditioning at two different stores - one store had the 402 out on the floor with the 2200, and the other had the 252 with the 2200. i never got to do a direct comparison, but i'm not sure that i could even tell the difference between the two. both systems sounded great to me - tight controlled bass, liquid mids and smooth treble. it did seem that the 402 produced more powerful bass, but i don't know if that would really be an advantage considering my moderate size listening space, and the fact that my mani2's already put out some serious low end.
i suppose that part of my desire to get the 402 was its elite status and very favorable reviews - especially in TAS. but when push came to shove, i don't think that i found enough difference between the two to justify all the additional expense of the 402. i suppose that if $ were not an issue, i would have stepped up to the plate and bought the 402, but as things stand i am very pleased with my choice.