I get the feeling if a majority of people had switched to the new Basecamp, they would have killed off the old one, but it's such a breadwinner, they are not go

I get the feeling if a majority of people had switched to the new Basecamp, they would have killed off the old one, but it's such a breadwinner, they are not going to take it away, although I suspect if it ever gets to the point that a tiny portion is on Classic, they will change their mind, which is unsurprising as that's more or less been the concept of their company (to make bold statements and change them when circumstances change).