It isn't so much cult-like as being in a cult implies some sort of religious belief and I don't think Glockers are religious. No, I think it would count as commercial or corporate brainwashing and fanaticism. Then again, there are the P32 people, 1911 people, AK people, 1911 people, I think most of the Raven devotees have died in gun-related 'accidents', and then there are various other followings, as of the Order of the Browning High Power, the Bovine devotees of the Raging Bull, Python Snake Clan, and the like.
For Glock owners, this month's drills will be from the lotus position...