RVP - only took 6 seasons to become world class. Point is he was bought for the future
Adebayor - Good buy, very good buy
Eduardo - Looked good but ultimately didn't hack it
Giroud - 11.9m was an okay price at the time. Point is he's not a class striker. Hes a level above Chamakh but a few levels below all the strikers that are challenging for the league
Sanchez - Was never a striker, never played up front and was always a winger for other managers. Arsene was the first one to put him up front.
He wanted Higuain and skimped out, and he wanted Benzema and skimped out (who you want to blame i don't know but its wenger that comes out with the value soundbites). You can hardly call Higuain, Benzema and Sanchez "good" scouting. Every man and his dog knew about them when they were moving and they went for huges amounts to represent that everyone knew they were good.
The point is, Arsene hasn't pushed the boat out on a class striker and its only gone and bit his arse even though you've had money to spend recently.
Courtesy of transferleague and your past strikers for the past 5 years:
17m on Perez,
16m on Welbeck,
Yaya Sanogo on a free
11m on podolski
13m on Giroud
3m Park Chu Young
Not just has he not spent big on the striker, he's actually decided, we don't need a striker, we have the above strikers to do a job. That's why fans are pissed off with him (plus he would have made millions on these big named strikers, Cavani, Higuain all sold for way more than they are worth)