Dear Spriritofmusic: Other than the seller I know no one with experiences on the Astatic MF-2500 and even I don't know if the seller already heard it and compare against the MF-200/300 that some of us support.
The Dgarretson link: http://www.ebay.com/itm/World-Famous-Astatic-Moving-Flux-Phonograph-Cartridge-MF-Series-Model-MF-300-/320928474738?pt=US_Record_Player_Turntable_Parts&hash=item4ab8d3e672#ht_500wt_1048
is for acartridge that have the same motor of the well regarded MF-200 where for a few dollars you can up date through Axel ( Germany ) re-tipping/refresh. This is very good option.
Now there are current MM/MI cartridges that are very good performers too, Garrot have a pair of models and the Virtuoso Wood by Clearaudio is very good too especialy after Axel's " touch. You can read something here about the Astatic and Clearaudio cartridges:
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1200430667&openflup&7504&4#7504
http://forum.audiogon.com/cgi-bin/fr.pl?ranlg&1313624221
Regards and enjoy the music,
R.
The Dgarretson link: http://www.ebay.com/itm/World-Famous-Astatic-Moving-Flux-Phonograph-Cartridge-MF-Series-Model-MF-300-/320928474738?pt=US_Record_Player_Turntable_Parts&hash=item4ab8d3e672#ht_500wt_1048
is for acartridge that have the same motor of the well regarded MF-200 where for a few dollars you can up date through Axel ( Germany ) re-tipping/refresh. This is very good option.
Now there are current MM/MI cartridges that are very good performers too, Garrot have a pair of models and the Virtuoso Wood by Clearaudio is very good too especialy after Axel's " touch. You can read something here about the Astatic and Clearaudio cartridges:
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1200430667&openflup&7504&4#7504
http://forum.audiogon.com/cgi-bin/fr.pl?ranlg&1313624221
Regards and enjoy the music,
R.