Yes I have seen these cheaper and with bigger capacity, I have also bought one of the Western Digital units which was to be a back up if the PC failed. To my horror after putting all of our holiday pics etc on it, IT failed and not the PC. Called Western, did some tests and they agreed that it was the unit at fault. They offered a replacement but said they do not offer any data recovery so what was on there was lost.
SO.....Gone for a Toshiba which I have not had any trouble with at all and if its not the cheapest I dont care and you cant put a price on memories.
PS When I got mine it was over a hundred but I did not want to recommend it till I had used it for a few months