Happy for Yes, sad though that it may have taken Chris Squire's death to put them over the top. Pearl Jam was the biggest no-brainer considering the leanings of the people involved with the inductions. I think Perry will sing with them, I don't know of any real animosity there. Infinity through Frontiers was an unbelievable run of albums for them.
Now with Rush, Purple, Kiss and Yes in they need to get into the metal genre (Maiden, Priest, Motorhead etc.) but that seems to be public enemy number 1 now even over prog for Wenner and company.