We hired ours from our local council it was a safe and sound one cost $45 to hire with a refundable $50 bond, i worked out that if i bought one and had three kids it still was more than hiring it three times so that's why we chose to hire.
My DS loved his and I must admit it was so easy when he was in that especially for quick trips like to the shop to get milk i got leave him in it put him down safely while i paid etc and didn't have to worry about a pram. Hiring it was great as i didnt have to worry about storing it later either