For that matter, it would add just a little more realism to replace some of the WGT balls with low end golf balls from real life. Setting sights a little lower could add a lot more "real life" equipment for lower licensing fees. Top-flite, Maxfli Noodles and the like. Chromax golf balls with their metallic colors might almost pay WGT for the advertising they would get by letting WGT add their product here. The same for a low-level company that puts out distance "rocks" like Ti-Tech.
The low level "real-life" balls won't happen from a big name company because of
1. Company image. A big name company only wants their best stuff represented here.
2. WGT profit. WGT balls require no royalty payments. Only a smaller company or a company whose bread and butter is low-end will be willing to let WGT use their stuff for little or no fees.