Well said clemzonguy...
People with quality type-in traffic always have business while people why rely mostly on search engines have to worry everyday where their site will show up in the search engines ... and if using paid listings, how much will clicks cost, how many are bogus, etc.
Type-in domains are become increasingly valuable ... names with 10 or so type-ins daily used to be near worthless, now many are going for low $x,xxx ... and names getting 100s to low 1000s daily are often going will into 5-figures and even 6-figures ... while names getting mid-1000s+ daily are now going 6-figures to very low 7-figures.
For example, take one of my domains (won't mention name here - see the external auction section for name; PM me ... it's for sale!) gets 8,000 visitors per day (a few thousand pure type-in) with no advertising ...
Average of what advertisers for our type of site budget for is around 10 to 50 cents per click ... so for simplicity, say each click is worth 25 cents...
8,000 visitors x $0.25 = $2,000 per day is what it would cost for them to buy that traffic if paying on a click-through basis. To be clear, 8,000 is raw traffic and thus isn't trully worth anywhere near that, but $2,000 is still what it would cost them to get that amount of visitors.
Say the traffic is worth 1/4 of that in reality ... $500 per day (very realistic and close to reality, since ad revenues for the domain run around $250 to $300 day)...
$500 / day X 365 = $182,500 per year ... and with click costs, etc going up, the value of traffic continues to increase... illustrates very well the true value of type-in traffic ... and with nothing out the horizon for the foreseeable future, quality type-in domains will continue to become more sought and valuable.
Ron