I've been resisting the FOMO of the SPG Lux - I don't need another $450 AF, but I really could do with replenishing my Starriott stash, and I do have a Starriott stay planned in a couple of months. No rush, though, because I haven't gotten a Marriott bonus within the last 2 years, so I can wait and do it later, right? Its just going to start the 2 year clock when I can get the next Marriott card a little later, right? I did get the SPG Biz, but that doesn't seem to limit my ability to get the Lux bonus, right? Breathing deeply...
Yes- you still get points and perks, even on a group rate (although not all brands offer all perks - if you are talking about Starriott, I don't think that Gaylord Hotels (big convention properties) give lounge access or breakfast to elites). In my experience, my points/nights from conference stays don't show up in my account automatically (even if I entered my rewards number when I registered). I usually have to fill out the "missing stay" paperwork, but everything eventually gets credited.