Thats what I figured about an hour after buying it :icon_cry: It's due for renewal next month so I'll probably just let it expire.
I bought mysharedadventure.com last month with the intention of doing a travel blog site, then realised there are several out there anyway!
http://www.acorndomains.co.uk/ is a good place to get advice and offer domains for sale.
I own Leicestershire.com and Leicestershire.biz, I've not had any interest from anyone wanting to buy them.
But when I buy domains it's because I plan a website for them, not as something I think I can resell for a profit. I have about 250 domains I've bought for this reason, but 90% of them are unused at the moment.