It depends entirely on how you intend to use the reel within the booth flow. A looping background video rarely sparks genuine conversations - think of it like a product page with no optimisation. Where it earns its keep is as a tactical tool for your reps: something they can reference mid-discussion to illustrate a specific install that matches the visitor's vertical.
I'd evaluate it the same way I evaluate any Amazon asset: does it shorten the path to qualification or move the needle on the conversation? Short, segment-specific clips - schools versus camps, for instance - outperform a generic sizzle reel every time. The real leverage comes from integrating the reel into your meeting structure, not just hoping foot traffic stops to watch.
Practical step: cut two or three tight versions by use case and give your team a simple way to pull them up on a tablet during conversation. A rep who can pivot with a targeted visual beats a polished loop that no one actively engages with. The time and cost trade-off only makes sense if the reel actually accelerates decision-making - otherwise, it's ambient noise.