Whats wrong with the Sig? Inaccurate?
The trigger is worse then the Glocks?
Parts are more expensive?
Using Bud's pricing, the glock is worth more then your gun, by 100 dollars or so?
Also appears to be a full sized vs. a concealable difference.
Also appears you get to tune the Glock the way you want, and parts are cheap.
The 17 has been around, and their are lots of parts, cheap.
The Sig is new, relatively, and Sigs have never been known for inexpensive parts.
Depends on what you want.
The two guns have different functions, and purposes. I'm having a hard time getting behind buying a CCW sig, and trading it for a full sized glock.
On the otherhand, looks like you get the better end of the stick on the 17, and you can buy another ccw gun later, like a 26.
I've never really fallen in love with a Sig, though from specs, and others experience they are great guns. Just not really for me.
If you are thinking of trading, the Sig may not be the gun for you. Most guys that like Sigs, LOVE sigs.