Have you considered:
One tier and one price? Make it simple.
Consider this, how much time/money/effort do you want to spend incentivizing multiple tiers of payment which may or may not just stress out the user to not sign up?
One tier and one price? Make it simple.
Consider this, how much time/money/effort do you want to spend incentivizing multiple tiers of payment which may or may not just stress out the user to not sign up?