Given the volume of people who move through the station - reportedly more than 17 million a year - I think passengers are reasonably accomodated. But, if some people want more conveniences - including expanded facilities - then the station management/Amtrak could probably make them available - and add a user fee or raise rail ticket prices to cover the cost. The instances when the Great Hall is reserved for events are relatively few. If someone wants to complain about rail stations - we might begin with the pitiful situation at St. Paul.
Now, now, if Chicago Union Station does well by its 17 million yearly passengers, surely St. Paul's Midway Station is a palace for its
147,791 yearly passengers. Heck, they both have Metropolitan Lounges, and I'm sure that the waiting area for coach passengers in St. Paul is at least 1% as large as those in Chicago. And try to find free long-term parking at Union Station.
There is a plan to move Amtrak service back to St. Paul Union Depot in 2012 or 2014. I'm in favor of this, as it would refurbish a great old building and give a poke in the eye to Minneapolis, but I'll believe it when I see it.