Some conventions – the 2014 World Fantasy Convention in DC, for instance – have worked to ensure that disabled members have full access to the convention.
Others have not.
Thanks to far too many examples of the latter, I have decided not to attend conventions that do not offer an accessibility statement on the convention website, and/or a written statement to me guaranteeing disability access, and offering specifics about that disability access.
I will also no longer be attending conventions that do not provide access ramps to stages.
I am, granted, only a very small voice in fandom, but I’m a very small voice that can no longer use my money and time to support conventions that cannot take the time to ensure that I can fully participate in the con.