Put it into context. MGW nearly went for £60M as a PL regular for the last 3 seasons and he's been one of the best performers in his role over that period whilst becoming an England international.
Southampton are putting him a similar ball park fee wise. They're having a giraffe.
Not really a like for like comparison though, only reason MGW almost went for £60m was due to his release clause and not because he was valued at that by Forest.