FWIW, I've been shooting for 30+ years and own a bunch of firearms. I own five Glocks and nine SIGs, plus many others. My SIG P229 Elite in .40 S&W is the finest weapon I've ever owned or fired. My SIG P229R SCT 9mm is a close second. My SIG P220 Elite .45 ACP is third. My FNP-45 14 + 1 round .45 ACP is fourth.
Yes, a good SIG costs an arm and a leg, and the wooden grips on the Elite models are kinda fat (I put stock SIG plastic grips on the P220 Elite and now it's perfect). A SIG is an heirloom that you pass down to your kids, and it protects your ass in the meantime. A Glock is a Snap-On tool: wonderful for its intended purpose, but which sits in the toolbox when not needed. Only you can judge their relative value.