I hear you, if only....
i did make a few good buys last year. I bought:
www.AlumniConnection.com for $2,850
www.ThePNN.com for $800.00 (The Porn Niche Network)
www.BoysGoneBi.com - No Cost (several asked me about selling it)
www.PenetrationNation.com - No Cost (Had many offers)
There have been a few others - it is hard to say what a domain is worth.