I just had to look some of these up. I have posted a couple of songs by Elmer Gantry's Velvet Opera here in this forum, they are also on the list.

4 years later they were multiplatinum.
Not that Jethro Tull were much more expensive.
450 pounds for Small Faces is pretty good money. A bit under a grand in 1969 was pretty good for a band., I'd guess.

Look at the talent you could have had for a week.

Moody blues, Joe cocker, Jethro Tull, Fleetwood Mac, pink Floyd, and probably a lot of others on other nights.

Wow.