I may be inclined to agree. Northern cities are losing ground to southern and western cities in terms of many different types of conventions.
Still, the Lansing Center could still be great for smaller and/or niche conventions. IMO, the current center, while decent, is just that: decent. There is nothing special about it, and in such a competitve market there needs to be something special about the centers.
Lansing's always had the problem (on many fronts) with being lodged between two major metropolitan areas, and quite a few smaller ones. Lansing's location between Detroit and GR, in this case, has really hurt it's convention business