I upgraded my stadium to 1500
I'm Skint
So am I! ... Well got about 30k left. The guide is telling me that because I missed buying a scouting thing, even though it never suggested it yet, I have to buy a player but of course there are none available in this price range so probably need to wait for the transfer window but fortunately I have a few home games coming up, including my next cup game, which will hopefully get me some more $$$ and I have 41 or 42 of those coin credit things so once that gets to 100, I intend to create my 2nd player - Nick Beckham is doing very well for me at the moment.
But I want/need to upgrade my stadium to level 2 now as I'm getting full attendance or thereabouts each match now but at over 300k, it's going to take some time.