How much would it cost to purchase a STARBUCKS store?

Answer 1

Can't be done - they don't license franchises, at least not in the US. Check out the Starbucks website.

Our Most Common Inquiries
http://www.starbucks.com/customer/faq_qanda.asp?name=common#franchise

Does Starbucks franchise?

Starbucks does not franchise operations and has no plans to franchise in the foreseeable future.

In North America, the majority of our stores are Company-operated. As an exception, Starbucks may enter into licensing arrangements with companies who provide access to real estate which would otherwise be unavailable such as airport locations, national grocery chains, major food services corporations, college and university campuses and hospitals.

For international business development opportunities please refer to the International Development section

Answer 2

You have to work out the franchising fees. It also depends on the store layout and size that you want to operate in. Contact starbucks. However, why don't u create your own branding, u will stand to gain more in the future. Go travel around to look for ideas. In 20 years down the road, u will have a new coffee joint.