I might be wrong but didn't united only start negotiations because Newcastle offered us 24m upfront. I'm sure we could have gotten more upfront.
I dont care what anybody else says. Everton recieving bids of £27m was unheard of. It was fantastic business for us selling a youth player for that sort of money. Could we have held out for more?..... possibly, but don't forget Rooney was still a very very young lad. It was a punt for United. Although not a massive one. I'd like someone who disagrees to list 18 year old players who've been sold for more than that! There won't be many especially around the time Rooney moved to United.
We are currently operating within our means. Just. We bring players in sell them for profit and reinvest in the squad. That makes great business sense. However there are teams in the league who are toys, they aren't businesses. Without their mega-billionaires they couldn't operate the way they are.
We all want better. But unfortunately at present we need a new stadium, which is the key to making us an "attractive" purchase.