are you bidding on your own auction? you could at least put some btc->gbp price converter script on that domain to catch some traffic and increase the worth if you are looking for 25BTC
There are not so many BTC domains for sale anymore,will be valuable in future no problem.Who think to buy it now,this is a cheap price now.Will see after halving and in 2 years maybe from now when BTC will be like gold for people.