Not really, its not too bad.
For an item that costs 1p to manufacture?
I could make one myself for less.
I doubt you could. Seriously. Even at trade prices for single pieces you're looking at 50p in parts and even if you cost your own work in at 5 minutes at minimum wage you're still looking at another 50p.
I've already found places selling them for 99p. So I can't believe that.