I guess being an 80's teen,it was kinda cool to see those particular 3 hit wonders! :D Although I have to say i was glad to see Men At Work back together for the Olympics in Australia nopt to long ago. (They're a real band in my opinion.
I agree though,I'd really like to see some more 1970's bands go at it one more time. Too many to mention! I like a lot of them but America springs to mind.
Sad to say,some of the coolest bands have lost key members and wont be back.

Foghat's lead singer passed away in 2000.
It's funny how when we're younger we take these acts for granted and toss them aside in the name of maturity (which is perfectly natural) then we get into our 30's & 40's and want them back! Radio stations are about the same,they simply stop playing their songs,then they become a "remember when" oldies act!