Rich Eisen says Peyton Manning in the broadcast booth is worth whatever money networks wanna throw at him -- even if his price tag's $10 MIL ... or more!
We got Rich leaving Craig's in L.A. ... and the NFL Network star didn't balk at reports that Peyton could be in line for an 8-figure salary for calling "Thursday Night Football."
In fact, Eisen says Manning should bleed the fat cats dry ... 'cause if he cashes out, "I get half!"
FYI, Rich ain't a 'TNF' guy ... but can't blame a man for shooting his shot.