Bought my 3rd N900 today... (just 60 euros) but only for geocaching purposes really using AGTL / advancedcaching.
(BTW Not a good timing to reinstall this new N900 now, I cannot install packages, maemo.org too slow!)

Bought my first N900 early 2010, I crashed it while cycling through Amsterdam a month ago.
Bought a 2nd hand N900 as backup mid 2011, gave it away last year as...
I bought an N9 in 2012, and really love it. So that's my main phone right now. I do miss some of the functionalities of the N900 and the constant stream of new apps in the community.