My rule: when buying a 'lifetime' service, assume that equals 10 years and weigh the cost accordingly. A lifetime Nebula subscription is $300, so $30/year. Is that reasonable to you for the service? Then go for it, and be pleasantly surprised if it lasts more then 10 years.
I've learned my lessons when I got my lifetime deals that scammed me:<p>* archhosting -- lasted 2 years before it folded<p>* zoolz -- changed their mind 3 years after their lifetime deal, and forced everyone to go to their paid plan.
Is that legal? Surely they can terminate for convenience going forward if that was in the ToS, but they can't terminate a right accrued as of the terminate date?