FWIW, I just picked up a used Gunnar for this race season, and I love it. It's lightweight, rides like steel should ride, and clearly takes abuse without complaint (this will be it's seventh season). TIG welding might be less attractive than lugs, and maybe it is nominally heavier, but I have a hard time believing that the strength is compromised in a meaningful way. I plan on keeping this bike for a long time, so I guess we'll see in 30 years how it's holding up.

I realized this is sort of OT, but I'm smitten with my TIG-welded bike and I felt like sharing.