I bet you'd love to see Liverpool take that deal because it gets Man U closer to them.
I can guarantee you that when Barcelona or Real Madrid sign a player for this kind of money, the thinking how much they can sell him for in the last year of his deal, and how much his being 27 or 31 will affect it, is a trivial amount in comparison to showing that they're the only clubs in the world that can bring these players in. Besides, if a player is still that good after four years, there's only one other club in the world they can sell to where the money would help recover their original costs...and Barca and Real don't sell to each other unless it's via a release clause.
There is zero chance Liverpool can replace Suarez's contribution for 60M and, unless they have sponsors making nervous phone calls, they'd be insane to accept it. If JWH is tempted, I hope he takes a long look at what happened to Spurs last season after they pumped the Bale money back into Soldado, Lamela, et al.
Finally, if you guys think I'm insane for suggesting these prices, keep in mind what always happens when Real or Barca go after a Top 10 player. When they transfer fee is announced, everyone says, "They paid how much?" There's a Real/Barca premium because they decide they simply have to have him and money doesn't matter that much. If that doesn't happen here, again, it'll only be because Liverpool found that they couldn't afford to keep him due to other effects on revenue.