My first listening of them was back in the 70's the album Demons And Wizards was the 1st time I appreciated them, followed by The Magician's Birthday.
I saw them at Alexandra Palace when there was a 3 day festival and they were brilliant, we also saw Black Sabbath, Yes, Stray and other bands that I can't recall at this moment in time.
That said, it was an era when one could go and see bands at a reasonable price, it didn't cost an arm and a leg to see more than one band, whereas nowadays most bands seem to charge as much as possible and you're lucky to get a warm up band before the main event.
I know it's not the bands, it's the promoters and suits that set the prices most of the time, it's one reason why Frank Marino and Mahogany Rush hardly ever get gigs, especially in Europe.
When Frank does get to tour it's mainly in the USA and obviously Canada, but when he last played here in 2005, a mini 5 gig tour, (how many bands do you know that would travel all the way from Canada for 5 gigs?), at least the prices were reasonable, probably because that's what Frank instructed, and also as they were small venues.
Like he has said many a time, the promoters are more interested in how much merchandise they can sell, than the actual music!