MJ: clearly you haven't read enough tales of the Bastard Operator from Hell... The solution is obvious.
1. Allow iPads to update to iOS 8,
one at a time (explain it's because of solar flares or something)
2. Your network is slow the whole day
3. Boss's viewing of fantasy football team / online poker / pornography / youtubes of cats / world of warcraft is seriously disrupted
4. Boss comes running up, winded and sweating by the 7-yard sprint from his office: "Why is my network so slow?" MJ: "because we don't have an $800 Mac Mini running Caching Server to update the stupid iThings"
5. Close your eyes to protect them while boss shoves money in your face.
6. Take $200 and get a second-hand Mac Mini from eBay. Then go to the casino and put the rest on black.