Does anyone think mortgage stocks are a good long-term buy?

Fannie Mae, Freddie Mac, Countrywide, etc. are all tumbling (some up to 80% from a year ago)... but I've noticed a rebound of over 30% in a matter of days. Do you think these stocks, now hovering around 7-13 dollars per share, will ever get back to their 40-80 dollars-per-share range?