I think the rarest Dollar error coin last year may be the 2007 Sacagawea found with Presidential edge lettering, as far as I know there is only one found so far. And in 2009 the Sacagawea will have edge lettering too so the Sacagawea error coins may be the ones without edge lettering in the future. As far as the Jefferson goes I wish I owned one but $3000 is too much for me. As long as no more show up that price may hold but at some point I think the future dollars will have a year where less coins are found like perhaps a dozen or so and that one will go for moon money.
1.This is the first coin series ever in US history without a year date. Actually the series does have a date, the error coins don't have dates. There have been other error coins in the past that didn't have dates either because of grease filled dies, die breaks, off-centers etc. 2. First coin series that was supposed to have edge lettering that didn't . Tell that to the collectors of capped bust halves which are also known to sometimes come missing the edge lettering. 3. First dollar coin since 1804 draped bust dollar with edge lettering. Except for the 1988 Olympic dollar coin. Or was it the 84? 4. The US had not struck a coin with edge lettering for 99 years. Try either 23 or 19 years. See previous comment. If you mean for circulation you are closer, try 75 years. 1932 double eagle. 74 years if you count the 1933 that was struck but not officially released. 5. They also have put an end to edge lettering. So the edge lettering coins become at the most a two year type coin. That was ended because of this error. As mentioned above the edge lettering is not going away, they are just moving one of the phrases off the edge and back onto the face. The other edge lettering stays. I could go on and on. Maybe you had better, so far you're zero for five.