It would help if you provided profit/loss figures, a balance sheet, traffic states, list of assets etc. Making people come to you for these details will deter people making an offer since its quite cheap to build your own site these days.
Thanks for the suggestion.
You're right that it's maybe not so difficult to build a site these days. Our site however still represents many many months of development, and a lot of trial and error, especially with the design side of things. We've also learned a lot of lessons along the way, some of which ended up costing us a few Bitcoins. Do you really want to build a business with cheap developers pumping out questionable code? Especially if your own Bitcoins are on the line in all the games?
There is more to a web site besides the code and art. The trustworthiness of the brand goes a long way to ensure that customers will continue coming to the site and recommending the site to new users. We have been around for almost two years, so it should be clear that we run a legitimate business. Any new casino that comes out now doesn't have that benefit. We also have financial numbers for two years, so the purchaser would have some sense what his profits would look like.
If someone is serious enough about wanting to take over our successful internet business, he surely will have enough time to send us an email to get more details.