I don't think changing the price structure in Ottawa will change anything.
Like I said before, people have longer commute times to and from work, work longer hours, and have a mediocre in-arena game experience. Add in the new higher standard comforts of home, and teams need to do more to sell tickets.
Moving to downtown is only part of the solution. There also needs to be LRT running smoothly and efficiently. There needs to be many park and rides on the east, west and south ends of the city. There also needs to be some good shuttle services. And after all that, the team needs to make being at the arena fun.....better music, better use of the jumbotron, better food/drink selection, better service overall. Hell, better (more comfortable) seats, great sitelines, strong multimedia support (fast reliable wifi), maybe even bring over some 'lounge' style seating for groups (think your living room dropped into a section at the arena, kinda like how some theaters have reclining seats and high end services). Even having flatscreens on the back of some seats that people can interact with and show replays, commercials, and other info.