They are all good uses but when it comes to brandable names you have to think 'what does my domain offer that a similar domain at reg fee doesn't?'. This is because there is no immediate obvious use. I'm not saying the domain is worthless but it is almost impossible to appraise because it's value depends solely on the buyer's motivation and nothing to compare it to or figures to work from. However I wouldn't let it go cheap *if* someone approaches you with a view to a purchase. Being brandable though it may just sit in your portfolio for years before you let it drop. I wouldn't let it go for under 3 figures to a potential end user.