Some of the most expensive domain name and how much paid for them below:
Business.com $7.5 million
AsSeenOnTv.com $5.1 million
Wine.com $2.9 million
CreditCardsnnnn $2 750 000
Autos.com $2.2 million
Mercury $1 100 000
Me.com $460 000
Smoking.com $325 000
Arab.com $225 000
Visitflorida.com $186 000

Commerce.com $180 000

Beef.com $150 000

IQTest.de $147 635

TourismAustralia.com $146 200

SexLontakte.de $141 175

Mr.com $125 000