Tesco seems to have the best price around for Samba "Fun" goals that I've seen. We purchased the 6x4 for £45 and got it delivered to our local for free. Elsewhere this size is around £55 + delivery.
They do not appear to be on offer at Tesco, just a good price.
Now that Spring is nearly here, good time to get the little ones out in the garden rather than playing fifa.