One of the fallacies of following football, thinking other clubs' fans will remember you for winning this or that and you gaining some sort of bragging rights - it's simply not true. You can always throw it in someone's face "oh yeah, we've won 13 league titles", but who gives a fudge anyway? It's the here and now that counts in football, and it always will be. We've got a great team now - we're playing great football (most of the time anyway), but haven't won anything? Who fudging cares. I'd love for us to win a cup, but other clubs' fans wouldn't give two bricks if we won the Champions League. It's only the fans of the clubs that wins cups that truly care, everyone else forgets a week later.
What people do remember though, is a team that plays good football week in and week out - like we're known for doing these days. Sure, I'd love for us to win something, that would be ace, for our own celebration and well being, but I wouldn't think for a second that other clubs' teams would give two bricks. Why would they? "Oh yeah, you won the league last year, good for you, now it's another season, who cares?".
Chelsea of 2012 will be remembered for "the team that parked the bus to win the CL, boring fudgers, boooo". Tottenham of 2017 will be the team that "won fudge all, but they played some amazing football". But who knows, maybe we'll win something as well. Hopefully we will, if only for ourselves.