Proven scorers like gyokeres who would cost £20m?
Possibly more like £12-15m, maybe plus £5-8m of addons, which if we had to pay them we wouldn't care, as he would have been further proven. He'd have got 30 last year, playing for Fulham, or probably 25 playing for Bournemouth. He's worth a hell of a lot more to us than Spence, which would likely be a similar transfer structure. Nobody is paying £20m flat fee.
Also, it's not just about goals, they need to be able to play football in this side, and link up with other players. We've bought scorers in the past (Assombalonga, Rhodes etc), and not played to suit them, or expected them to be something which they were not.
He's not even that proven
Who, Gyokeres? He's proven enough over a 46 game season, to be able to get goals in a mid table side and more importantly he's clearly a good footballer, with a lot of attributes. Plus we've got first hand experience as he absolutely destroyed us, and we're meant to have a decent defence/ midfield.
Could say the same about Brereton Diaz, but I won't, as in one year he's proven enough, like Gyokeres.
Hoppe's much less proven (albeit only 21), he's 3rd-5th choice for a poor Mallorca side (who are no better than top Championship teams) which couldn't score. He's no more proven than Coburn.
Larsson looks a little more proven than Hoppe, but he's been playing in a bad league too, hence why he's up for playing in the Championship. Larsson proven a lot less than Gyokeres, probably why he's valued in the middle of the two.