JazzG
Vini knows Madrid won't bench him. And Madrid wouldn't risk treating one of the world's biggest stars this way - it would also completely ruin any chance they have of re-signing him closer to the end of his contract.
If he doesn't sign this summer, he'll stay on at Madrid and play per normal. It'll then be an arms race for his signature next summer and with that leverage in play, he might get what he wants from Madrid and if not, there'll be a line of other clubs waiting to pay him whatever he asks for. We'll then have to compete with PSG, City, Liverpool, Chelsea, United, Bayern, Barca and he'll have all the leverage in the world.
From his perspective, why on earth would he give that up and move this summer?