In my opinion Orange offer cheaper handsets on pay as you go but you will pay the real price of the phone if you ever have to use their customer service in person, to be fair it is not so bad on their helpline but 'customer service' in their Dundee Overgate shop is truly appalling. When i had lost a phone the helpline sent me out a replacement sim card, however when i went to the shop to buy a new handset i was told i would have to buy a £20 top up which would be credited to a different sim which i did not need as there was already credit on my replacement sim card sent from the helpline. They refused to sell me the handset without the new sim and top-up, on top of this it took abut 2 weeks to receive the replacement sim card. When i argued that i had lost a phone and was going to buy a new phone and orange would still have a customer etc i was greeted with a barage of verbal abuse.
In the end i went to another orange shop in Dundee outside the wellgate and they helped sort the mess out, orange have since closed this shop that helped and left the other one open. After this sour experience i decided to unlock my orange hanset and go back to Virgin who i never had a problem with but left because i was won over by the cheaper orange handset. Moral of the story - don't be tricked into cheaper handsets!