Real Question to Crypto Endorsers?

This might be a bit of a weird post, but it seemed like a good place to ask?

A little back story...

One of my closest friend have been into Crypto for the last two years. My friend seems to be extremely excited about it and, I personally have nothing against investing through crypto in general. What really gets to me, is the continuous conversations about it. I have told him nicely and other times just been blatantly, that I am not interested in all this, as much as they push it on to me. Its mostly the "If you invest X amount now, it could be X amount" or the "Your missing out". I really do care for them, and understand they are probably excited in sharing something they have an interest in. However I cannot stand the hours of the "recruiting" type of talks anymore, as those conversations usually just go into one ear and out the other.

So my main question to y'alls is:

How do I get someone to just stop talking about crypto all together, without coming across like an ass?

"I am just not interested", or "Is that all you talk about" have been thrown at them too many times, as I don't think they are getting the hint. Any help would be much appreciated.