Perhaps a ratings drop was inevitable with Bob's retirement since there were people who refused to watch the show without Bob despite the fact that there had been four other hosts of the show at different times at that point, but there has certainly been no need for the ratings to tank as much as they have no matter who they picked to host.
Firstly, ask people "Who are the people that have hosted
The Price is Right?" They'll look at you and go..."Hosts? Are you nuts? There's only been ONE - Bob Barker!" ...And then you smack them upside the head.
Fact is that people DON'T KNOW that Dennis James hosted the show because exactly ZERO of his episodes have been reran, Tom Kennedy is only A BIT better-known since his episodes have actually been reran, and Doug Davidson only hosted for sixteen weeks!
Bill Cullen (the original host) is not well-known because most of who ends up in the audience today grew up without him. (Yes, we have had a whole generation grow up without ever seeing Bill Cullen!)
My point is that, although people are happy to be on regardless of the host, the general public DOESN'T KNOW ABOUT PEOPLE OTHER THAN OLD MAN BOB!
...And THAT'S why I despise Bob Barker, as well as responding to your comment.