I think it's easy to judge in hindsight.  It was clearly a bit of a gamble and who knows what will happen in the next season or 2, but at £8m plus add ons (which I assume haven't been activiated) it wasn't an unreasonable amount for someone who had similarities to Rickie's reputation in lower leagues.  As pointed out above all you need is a season or 2 like Ings and they've repaid their fee.  I for one think that when he's fit he is our best striker and against Arsenal and even a little this season has shown his ability.  If it's just a mild illness then hopefully we'll see much more of him.  I for one am a bit more optimistic on him.