I don't mean to sound Pollyanna-ish, but even it shuts down in a few years, where's the real downside? You will have (possibly) had an income stream during that

I don't mean to sound Pollyanna-ish, but even it shuts down in a few years, where's the real downside? You will have (possibly) had an income stream during that time (and for those big names that might give the money to charity,the charity will have benefitted). You may have developed a following/community that might follow you elsewhere. You may have picked up some intangible skill(s) that you might not recognize at the time. And you get none of that, what will you have really lost?