Never pictured you for a single stack .45 guy. Good choice! In 2008 I had just moved back from South Dakota and was waiting on my LTCH. While out west I carried a Browning HiPower. For years after coming back to IN I was a Glock guy. So yes it is interesting how things change.
I rocked the 45 until I started shooting a lot and realized I couldn't afford it. Good factory magazines were $45.00 as well. So I went looking for something more economical. 9mm in a Glock 19 fit the need. Size was better too. Magazines were $11 to $13 the the time. Ammo cost half as much or less. Heck, I could roll down to wally world and grab a box of WWB 9mm for 8 or 9 bucks.
I took my first training class at the end of 08 and a few others in 09. That changed my priorities too.