Well, you can pretend you're Bill Gates! He had a 4 X 6 cube wall in his home entrance years ago. Then Melinda wanted a bigger kitchen, and it had to go. I ended up with the 26 $27,000 cubes.
(two were spares) About 3000 hours on each set.
The Pioneers are a bit more limited, as they may be 640 X 480 resolution only, the Barco cubes that I got did up to 1080p.
They are cool to play with, but pretty much worthless, as video walls are still being made, but use flat screens now.
Part of the problem most likely is that the lenses are really limited as to the picture size they can throw, The lenses on the BArcos did a max of 50" diagonal, so I scrapped most of them for parts.
Play with the unit, did you get the VGA cables between the cubes and the controller? The controller is universal, you could drive LCD screens with it most likely, but overall, the whole thing isn't really worth anything, unless you can convince a shopping mall to buy it for cheap. THe other thing is, with use, the cubes will need calibration to get all of the color balance to line up between them, and that's a pretty involved job at this point, requiring a colorimeter. I remember seeing CRT video walls at a few Disney retail stores. They looked great for about a year or two, then they all needed work.. which of course no one allowed for.