If you're trying to sell in the UK, keep an eye on the outcome of a case that's currently being investigated by the UK's Gambling Commission. They are investigating whether a couple, who sold 46,000 tickets at 25 quid each to "win" their house, are legally allowed to do so... could be an option if it's deemed legal or if there's a way around the current legalities! That's a cool 1.1M UKPounds!
http://www.out-law.com/page-9511