I guess I was one of the blessed ones during the late 70's and early 80's. I had joined the Boilermakers. First in a pipe manufacturing plant at over $12-14 per hour (although, come to think of it that was probably figuring in shift differential and graveyard only worked 7 but got paid for 8. Days 8 + .5 lunch, Swing 7.5 + .5 lunch, Grave 7 + .5 lunch = 24 hrs. I think days were about $11-12). Then went into field work on petroleum storage tanks, mining tanks, pressure vessels (CO on the oil shale retort). The field work was at $20-25 plus because of the remote locations of some of the jobs I worked we got some pretty good travel and per dium. We were bringing home anywhere from $800-1000 per week. My first welding jobs in the mid 70's were paying $7-9 per hour. May have started one at about $5 but got 3 raises in less than 6 months that put me over $7.
Back to the OP though, I hope I really see things starting to change but we are still in quite a low economic market. And there are way too many "welders" who don't really have the 'skills' but can strike an arc and are willing to take anything to feed the family. And I won't criticize them for that. Better than them sitting around on welfare. They can have those jobs. Just keep them away from jobs were the public safety comes into play until after they have really honed their skills and gotten jobs with reputable companies.
Have a Great Day, Brent