Went to Airparts and picked up my tubing. Straight Guage 4130. Believe it or not the cost was a little more than what I could have gotten a bicycle specific, double Butted 4130 tubset, from Nova Cycle. However I have a case of the "I Want It Nows".
Yea that Double Butted frame may weight a little less, but the thing you have to remember is you have to propel your bicycle + yourself. What precentage is 1lb of the 190Lbs. A little more than 1/2 a percent. I throw weight out the window, it's ride quality that makes the difference. I will say those nice heat treated tubing give a lot better ride quality than 4130. Ever ride a Colnago, Master Light . . Yea that frameset's got it going on.
Plus I get to go rummage though the bins for tool, parts, and other gadgetry. Have you ever need a part that would go like . . . Yea they might have it.