Paid member site questions - content in a 'store' as a free service products?

On a paid membership site:

1)  if I built my member site as a 'store' with each chunk of member content as a free service product, could customer members 'buy' these free service products? (only paid members would have access).

2) And can customer members return later to review the free service products in their customer profile? Even months later?

3) And later if the customers are no longer members, would they loose access to the memberwall protected content?

Basically, once they pay to be a member, A) can free service products be used as a way to "save" member content they particularly like, and B) can it be structured for the customer to loose access to that same content once they are no longer a member?