Yeah, I agree. Guys like Primo, Yoshi Tatsu, Darren Young, David Hart Smith, Goldust, William Regal, Zack Ryder, Tyler Reks, Chavo Guerrero, Chris Masters, JTG, Curt Hawkins, Trent Barreta, and the Usos appear week after week. On the flip side, guys like John Cena, Randy Orton, The Miz, Triple H, Rey Mysterio, Edge, Sheamus, "Dashing" Cody Rhodes, Undertaker, Kane, Dolph Ziggler, Nexus, Big Show, Corre, Edge, and Alberto Del Rio never appear on the show at all.
Now, guys like R-Truth, Chris Jericho, Kofi Kingston, Jack Swagger, Tyson Kidd, Drew McIntyre, John Morrison, Daniel Bryan, Mark Henry, Great Khali, and the Divas would have a match on Superstars but not very often.