I find all other forms of gaming "too limited," myself. I am currently running a regular Traveller game with four players (plus me as ref); we meet roughly every two weeks, depending on how long it takes me to prep.
I attended a weekly gaming night before I left my hometown that had two tabletop RPGs and some console gaming going on simultaneously. There were probably about 30 regular attendees in that group.
I don't use a lot of maps for Traveller, but I make deckplans for the PCs' ships, and occasional maps for important locations. Most of the time I just sketch tactical situations on scratch paper, though.
I played D&D 4e briefly, and for that I used battlemats displayed with Maptool on my HDTV screen.