Some more creative approaches to profile rigs to get away from 90-degree angles and reaches for space frame designs and styles like the Ariel Atom:There's room for innovation in the profile-built rig market. Color, for one. So far, it's black or silver. I've seen some gorgeous, custom rigs in a variety of colors.
Another area would be space-frame type construction with 4040 profile. You could do a Formula style layout, among other things. I've seen 1 or 2 space-frame type rigs; they're gorgeous and look nothing like these cookie-cutter designs.
Yet another area is seat mounts. Most commerical mounts are sloppy and have play/vibration. Linear bearings with 40-series profile allows tight mounting with adjustability. I'm surprised no one has done this, either.
How about convertible rigs? Moveable/flippable assemblies for wheels, flight sticks, rudder pedals, etc. Most Sim enthusiasts would welcome an expanded use for their rig for flight and space sims. There's plenty of innovation here, for a company that wants to pursue it.
Finally - for a really out-there idea - how about a projector-based all-in-one rig. Profile + flexible screen material could allow you to do a true, 180-degree, seamless wraparound screen. Couple this with a 4K projector + appropriate (anamorphic?) lens, and you'd have something rivalling the $500k commerical flight sims. How gorgeous would that be? In theory, profile-based rigs could make this fairly easy, with everything precut and ready to go.
Open Sim Rigs
We typically stock monitor mounting plates. Sim rig plate kits are cut on request, the lead time is typically 30 days. They can be powder coated or provided natural aluminium.