One quick (hypothetical) case study about generic names, power of the audience, and all that good stuff:
Let's say we take one typical generic domain... say Shampoo-dot-com. Since it has 239 in Ovt. we could safely guestimate that it gets about high xx to low xxx (at worse) to about mid xxx (at best) visitors per day. Currently Digimedia has a lovely landing page there with links to advertisers. Quick check of Overture bid tool reveals the maximum bid of $0.65 cents for term "hair shampoo", and that advertiser is indeed placed highest at Shampoo-dot-com (under "hair shampoo") We all know that Digimedia gets certain % of that depending on their particular arrangements with Overture. For the sake of argument, let's say they get $0.25 per click. We also know that only certain percentage of people click on these links. We'll give Digimedia credit for having such an inviting page, so let's assume their click rates are higher than avg. Say... I don't know.. 5%, or even 10%? Anyway, we'll then take 5% of 100 uniques and that would equal about 5 clicks @ .25 per click=$1.50 per day (at worst!) or lets assume the best; 10% of 500 uniques equals about 50 clicks @ .25 per click=$12.50. So say Shampoo-dot-com currently makes anywhere between $2 and $15 bucks per day. So let's average that out $2+$15=$17:2=$8.50 per day on average. But let's err on the optimistic side, let's say it averages $10 bucks per day, and that makes it $10x365=$3,650 per year. Let's be even more optimistic and assume Shampoo-dot-com makes 5k per year. Heck, for the sake of argument let's go crazy and say 10k per year. So overall, we could assume that a nice, generic name such as Shampoo-dot-com is probably and realistically worth anywhere between 30k to 80k on the current aftermarket.
Now, let's take WhatIsMyIp-dot-com for example. A few years ago that name was worth $0.00. Until very recently it was still worth $0.00 since it didn't make any money (as it contained no ads, or affiliate links of any sort whatsoever). However, having such a massive traffic ("audience power") the name attracted a top bid of over 360k in the open market. Moreover, that name currently contains adsense etc. so we could surely assume it makes many, many, many times more than Shampoo-dot-com does purely on the strength of its sheer eyeball numbers.
So the point of the story is, even if your ugly made up domain makes no money whatsoever (and WhatIsMyIp-dot-com made no money until it got sold) it could still theoretically be more valuable than 90% of generics outthere. Yet, a few years ago, or even couple years ago... if given choice to chose between Shampoo-dot-com and WhatIsMyIp-dot-com - virtually all of us here would have chosen former, rather than the latter. So the power is not necessarily in the hands of current revenue numbers, but in many other factors primarily those of the traffic kind. So that's why I say that the biggest typosquters (or non-generics with traffic) might be more powerful and worthy than the medium quality portfolios. But we all knew that, right?
Oh what a tangled web we weave.