K.M.
How many months do you pump? I rented a hospital grade breast pump (Medela Symphony) with my last two kiddos. It was awesome!!! I think it was $55 for the first 3 months and $25/month after that. Best.money.ever.spent! The pump retailed for $1500 or so.
When you rent it the box (pump) is 'used', but all of the tubing and breast shields are brand new.