The $300-million plan is expected to have a major economic impact on Portland. Currently, the expo center gets about 300,000 visitors annually. That number is expected to jump to 1.5 million.

The Metro Council is considering an approximately $300 million plan to convert the 53-acre Portland Expo Center site into a .

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but some worry that could dwindle next year as the convention center undergoes a multiyear renovation. Companies that make the time and investment to exhibit on the SXSW Expo floor see value in ...