Collectively you lot have an answer for any and everything thus the questions are.
What`s it worth?
How much does it cost to run per year? IE Internet hosting etc.
Are there any shekels left at the end of the year?
Does one have to reside in the UK to own?
Is there much pain?
Companies are often sold with a sale price based on a multiple of one years net profits. The multiple will depend on the type of business, and how the financials look overall.
For example, company owners may specifically make efforts to inflate the net profit, by paying themselves very little, because they have other interests, hoping for a higher sale price. But a new owner will also have to work for nothing, or employ people. Or, you could find that a company is being run really inefficiently, or where the owner/owners pay themselves most of the profits each year. Or where a potential buyer may realize they can greatly increase the profit, and pay a higher multiple.
The bottom line, is doing your due diligence, and inspecting the "books", to see how a company has performed over the last five years.
Good luck, it would be far better for an enthusiast to take TSD over, rather than one of the companies who will just introduce more charges, and bombard the site with advertising !