Seems to me they could do one of four things:
1) tell Sirius and XM lifetime's: "you can swap over to any like-1.0 radio." Keeping people from switching and overtime you can't find the 1.0 radios so the 3-time swaps eventually just get to the point where they are of no use because you have nothing available to swap to. Eventually the radios die off and there are effectively no lifetime subs left.
2) Encourage people to swap and not sell future lifetimes thus getting people to burn through their 3 swaps and eventually lifetime radios burn out and they get everyone on the more expensive pay as you go plans.
3) Keep offering lifetimes and allow people to swap and keep producing more interesting radios so that they get more lifetime swaps plus more lifetimers keep the customers happy.
4) Just sort of keep quiet about it with no obvious plan and leave the lifetime's guessing about what they can/can't do (their current strategy).
1) tell Sirius and XM lifetime's: "you can swap over to any like-1.0 radio." Keeping people from switching and overtime you can't find the 1.0 radios so the 3-time swaps eventually just get to the point where they are of no use because you have nothing available to swap to. Eventually the radios die off and there are effectively no lifetime subs left.
2) Encourage people to swap and not sell future lifetimes thus getting people to burn through their 3 swaps and eventually lifetime radios burn out and they get everyone on the more expensive pay as you go plans.
3) Keep offering lifetimes and allow people to swap and keep producing more interesting radios so that they get more lifetime swaps plus more lifetimers keep the customers happy.
4) Just sort of keep quiet about it with no obvious plan and leave the lifetime's guessing about what they can/can't do (their current strategy).