Just finished the reread of IT for the first time, since I first read the book when it was first released. The book brought up all sorts of childhood memories and friendships. I think Mr. King did a great job of story telling and giving us a "view of life". I really hated them loosing their memories, but upon reflection, I think this also happens in life after getting through horrific struggles. Years after my own family's struggles (during childhood), when things were peaceful and going in the right direction (as adults), we compared notes about some of the "bad times"; and each of us had "blocked out" certain details, again probably as a coping mechanism.
Also, having moved around as an adult and having formed strong positive realtionships at each of those locations, I felt bad about leaving my friends and co-workers behind, but moved anyway to the next challenge. I have fond memories of each of those locations, but the details fade through time, just as it did for the Losers club.