Singles/videos like "Addicted To That Rush" and "Green Tinted Sixties Mind" never really took off so they had a small, loyal fanbase of musician types. When "To Be With You" took off, their profile was raised quite a bit but I'm pretty sure they were still opening for Rush on that summer's tour. It just never translated to the upper league of Van Halen, Bon Jovi, Poison, Def Leppard, etc...
Great band and great show - here's some video I shot that night from the front...
Daddy, Brother, Lover, Little Boy
http://www.youtube.com/watch?v=lsI0HeWzttMUndertow
http://www.youtube.com/watch?v=poYgUIkEdMwSmoke On The Water
http://www.youtube.com/watch?v=pR-J0mz8aUM