Disclaimer: I worked for Mahalo last year.

You guys are over estimating the value of the domain names. They is a reason they were able to mass register these domains for just the base registration fee and not have to haggle with any private owners for a transfer. ____ answers is not a popular search query. I doubt any of domains are queries that generate more tha 500 searches a month. These domains have no value unless niche communities form around them and long tail content is generated as a result.