Didn't both Phillips and Johnson have one really good season amongst a load of dross? If not, my memory must be failing me again.Kevin Phillips and Andy Johnson were both OK strikers with a good work rate, decent pace, good finishing, just a too small and not skillful enough to become seriously good like Aguero, but then who is? They scored roughly 1 in 2 when given a proper run of games, and for some terrible sides as well. They worked very hard and could finish when they got a chance. I think the comparison you are looking for is Trevor Benjamin, "the new Emile Heskey" http://en.wikipedia.org/wiki/Trevor_Benjamin
For me we should NOT spend £20m+ unless they are aged 25 or less to ensure we will get a substantial whack of it back after a few years.
We shouldn't buy someone aged 27+ as their value will plummet after 2 years.
So it almost doesn't matter what we pay for Benteke as he is young and we'll get most of it back after a few years, the key thing is salary, right Scara?
We can certainly afford Benteke, the problem is regaining that fee if we pay more than double his value.