There once were a few ties I was very fond of, for sentimental reasons. As they eventually got dirty, I gave them in for dry-cleaning. Each time I was very disappointed with the result, so had to throw them away anyway. Nowadays, after those early attempts, I save myself the false hope and just buy a nice new tie instead. Ties are essentially disposable items: once they get stained, bin them and treat yourself to a new one. Don't get me wrong, I hate spending money I don't need to, but with ties I think the need is there.
I suppose service like tiecrafters can theoretically clean and effectively remake your tie. But at that stage, wouldn't you just prefer a new one anyway? It's probably not even all that much more, if you take shipping into account. If it's a real sentimental favourite, it's a more understandable service though.