I think most HGI's have at least a hospitality suite but some only have the one and rather than deal with guests having an upgrade and not the next time etc it is easier to just not upgrade the room. I have gotten upgrades at the St. Charles, IL to a larger Jr. Suite and the Downtown Chicago HGI has given me a regular room with a conference suite attched to it.
I dont expect an upgraded room ever at an HGI.