I Don't think we can gloat when we ended up with the "Spanish Vardy" for similar money and with half the pace. Looking at us now, he'd have probably done reasonably well in this team. He can make runs and work which is what we needed. He might have come unstuck with the fancy stuff but he's definitely better than Chamberlain and probably better than Walcott (though obviously not based on recent form).
Staying at Leicester was probably him settling at his peak and maybe it's hard to be your best after that. He seems the type that would have tried to prove himself had he been at a new club, but you never know, maybe he didn't think he could do it for us so didn't risk it so it might have worked out for the best.
But at the very least, i don't think we'd have been crying at spending 20m and 100k a week to sign him. Its all about taste but personally I'd have still preferred to have him over Perez given the choice based on what I've seen of both.