My own experience of buying things there is food, booze and cigs are really cheap, but clothes and electrical goods are the same price. The internet, globalisation and the fact that everything is made in China means that prices are the same everywhere now, except for in airports, where they are twice as much
If I want electrical goods and clothes I buy them here and benefit from a UK warranty.
I recently bought a few wooden ornaments/statues for my house from Palawan, they were pretty cheap, a couple of quid each, whereas the same things might have been £10 - £15 here, but to be honest the only things I usually come home with are 200 ciggies and a suntan