Elite Training Facility Past Level 6?

[War Priest]

Is there any purpose to upgrade unit buildings such as this one once they no longer unlock units?

[Deskjockey]

No, there is not. In the future, however, funzio may introduce new units that require a a higher level elite training facility. That said, I would not upgrade the building until and unless they do so.

[JohnnyR]

There's a couple holes in the air line up as well, The advanced air base yeilds nothing upon a few upgrades. Wondering if I should save valor again.