I'll never say never about buying a Glock but I have no real desire right now. My KRISS uses Glock 21 mags though so I would lean towards that model for conservation of equipment.
Since I am 45acpForMe I usually buy 45acp guns but recently got a SigP226 in 40s&w just to have another caliber capability. I also have been know to criticize .380acp guns for being underpowered, but just got this week a kahr P380 to help train my daughters on something other than 22lr. I may use it as a deep-CC gun occasionally too.
So buy what you want but as your punishment I sentence you to spending two hours in your local Para store. If your Glock fancy isn't gone after that I don't think there is any saving you. :-)