
It's worth getting a good one - I bought one from Halfords and used it twice at agility shows. On the second time of use a slight breeze - and it was slight - blew and one of the legs twisted so it can no longer be used :-( I am going to now buy a small event tent that will fit over the back of my car as they seem to be far stronger. Not quite so quick to erect but more stable and around the same price I paid for my gazebo - which wasn't particularly cheap but wasn't the most expensive either - it cost around £80.
The gazebo was pegged down and had all it's guy ropes on when it twisted :-( The pop-up gazebos also need two people to erect them but folk at shows are usually very helpful and willing to give one a hand to erect them.