OK, how about 3 letter .net?
Domain TLD SalePrice SaleDate SaleThru
KNX net $1,024 Jun 06 SnapNames
DHX net $1,054 May 06 SnapNames
WTR net $1,061 Jun 06 SnapNames
DLI net $1,151 Jul 06 SnapNames
FHD net $1,350 Jul 06 SnapNames
VTA net $1,400 Aug 06 SnapNames
GKM net $1,500 May 06 SnapNames
SVT net $1,550 Jun 06 SnapNames
OPO net $1,610 Jun 06 SnapNames
WKD net $1,772 May 06 SnapNames
TRB net $1,860 Jul 06 SnapNames
PLM net $1,960 May 06 SnapNames
WTM net $2,011 Jun 06 SnapNames
UWB net $2,150 Jul 06 SnapNames
AIP net $2,300 May 06 SnapNames
ANO net $2,351 Jun 06 SnapNames
KAW net $2,395 May 06 SnapNames
UHR net $2,551 May 06 Private
SVC net $2,950 May 06 SnapNames
PTO net $4,000 Jul 06 Enoms Club Drop
FTA net $4,475 Jul 06 SnapNames
GKN net $6,419 Jun 06 Sedo
AFH net $12,500 May 06 Afternic
Buy net $45,000 May 06 Moniker/Traffic
Sex net $450,000 May 06 Moniker/Traffic