 Because "The American Metaphysical Circus" offered a markedly different sound in its intense horn and woodwind arrangements and even more novel content than on the earlier "The United States of America" release, many fans of the earlier record are not as enchanted with the latter, and vice versa.In the UK, "The United States of America" was more well-known and highly regarded, in part because of the inclusion of one track on a popular Columbia sampler album, "The Rock Machine Turns You On", which was not released in the United States.In the U.S. "The American Metaphysical Circus" remained in print for nearly twenty years in the Columbia catalog, whilst "The United States of America" was relegated to cut-out bins shortly after its 1968 release.