It seems like I could buy one for cheaper then I could build one. So my question is, am I better off buying or building. Each has it's ups and downs I understand but well, I'm just not sure what would be better for me to do.

I hate buying uppers ever since I built(or should say re-built) my first one but I'm torn on this. So far it looks like to get what I want I can buy one from M1S and be around $470 for a complete one, or I could build one and spend another $100-150 more to build it. Neither one of those costs takes into account the LaRue forend cost(cuz it's not going on right away unless I build). But it's still no matter what at least $100-$150 more to build one(not including a couple other must have small parts) so I'm not sure what to do.

Just looking for some guidance I guess.