I also started with a 40 Glock..a G23. I liked it, but never shot it as well as other handguns, and eventually I sold it.
Now, 10yrs later, I was looking for a compact 45, and found the Glock 30...
I found a good deal on one locally in a face to face deal...it came with night sights, a good holster, and four mags, all for what I would have spent for an entry level 1911.
After shooting it, and finding I shot it really well, I decided a 9mm Glock would make for some cheaper practice.
A person near me advertised a near new OD G17 for trade for a beretta 92.
I traded my beretta off and couldn't be happier. The G17 just rocks.
Accurate, light, reliable....and compact...I can CCW it in an IWB kydex clip holster with no problem.
While plenty of haters will probably show up because this thread has Glock in the title, I will boldly state that, after decades of shooting most of the best known and most widely used 9mm's in the world, the G17 is absolutely one of the best.
It certainly is THE best for my purposes.