What is best? Profile/Database?

Hi
I am designing an application which the visitor will create his userinfo. Some users are paid users(like agency login)
What is best way to store personal information?
Is it good to store in Profile or store is seperate table in database. I am using asp.net membership provider.
Once the agency activity period is expired, the agency features will be inactive.
Can you please suggest me the best way to do this.
 
Thanks in advance

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