It's about how much they're worth, not how much I would personally spend on them.
Looking at the figure collectively is a little skewed, in their own right each would be worth that much slipping in to an already good team, but no team is going to spend out on them all are they.
We're in the PL so they will be crazy figures, different to what they'd be sold for if we didn't make it. The big ones:
Duffy 10M
Stephens 15M
March 18M
Dunk 25M
Knockaert 30M+