its simple really, if you think you are being swindled in someway, then don't update.
but if you take it for what its worth, lifetime update at a fair and more than reasonable price,
then you buy it. even if you get a measly year out of it...it will still be worth it ? I think so.
sometimes as humans we over analyze things, its in our nature.
but when all is said and done, how can this not be a great deal ?
I believe it is. but no one is being forced to take the lifetime update "or else".
just keep paying monthly if you choose.
Good luck