The only typos with true value are those that people unintentionally spell wrong because that's the way they think its spelled or their brain plays tricks. Example of the unintentional type would be "wierd" or "gambleing" or "calender". Examples of the brain playing tricks are: "laons" and "domians" which just seem to happen to everybody. Typos, like pressing the wrong key on the keyboard have minimal value IMO.
The one you listed is a stretch for the first category maybe...at least 16,000 people misspelled it online according to googel results.