They're prominent enough letters if a Company wanted to shorten a descriptive company name - or even, for example, A Massachusetts based company using the P and A as the company Initials - the letters are good it's just a case of being asked. If somebody came asking about a price, it's going to be a one-off opportunity. so personally I would be reluctant to ask above say US$1,200. I doubt you'll get any offers from a domain reseller