The local shop where I bought my G19, gen 3 in July of 2010 was selling them for $588 and the last time I looked his price was about the same. The gunsmith is a Glock Armorer, his sales associate is a Wealth of knowledge, and they give a life-time warranty to the purchaser of a new Glock. By the time you add the FFL fee and shipping fee to the discount sale vender's price you can support the local gunsmith/gun shop for only a few (literally) dollars more. I also have a different shop with a certified Sig armorer for my Sig needs.

Paid 475 for Gen 4 19, 500 for Gen 3 22 both local. I can't remember what I paid for my 30 but it wasn't much over 5 if any.

I pay around $425.00 - $450.00 out the door for most standard model GLOCKs. The key is to find a good local dealer (if you can) and buy lots of guns from them on a regular basis. Stay away from the big box stores that sell gun. They have to pay for that large building, electricity, man-power etc.. I personally do not buy online, as I want to see and touch the firearm before I make a purchase. I know people that buy online all the time and have never had an issue.

Here is a good example of getting to know your local Gun Store and becoming a "regular" with them. I've been looking at the FNS-9 recently, and I've seen retail prices around $560 to $599.99 + tax (and transfer /shipping fee if shipped). My local gun store has one in stock, with three 17 round mags (standard) which he will sell me for $500.00 out the door.

Gen 3 $485. Gen 4 $525 at the gunshop I deal with.