Summer Escapes Octagonal Family Pool - 9ft - 1806

I purchased this pool today from Argos for £50!!!! It is a large pool and would suit a family group perfectly and seems to be on a par with all my other pool purchases over the years with regards the quality. Only time will tell if it was £50 well spent but I am sure if it lasts a summer of use and fails I will be happier than the buyer paying £120,

This pool is just £50.00 at full price from argos. I really dont understand why it is £90 on here? The pool is good but not worth £90 which far exceeds the rrp. Sure there are trading laws about this kind of over charging?