One compromise might be to split the accounting so that the provision of the cabling to the outside of the apartments is covered by one amount, payable through OC funds, and each apartment is charged a nominal fee per connection. That way, the upgrade of the building is shared by UEs and individual owners can choose whether or not to pay the connection. Lets say in a block of 50. the OC pays $275 x 50, then charges $175 x 50 back to OC funds and tops up the account as people pay for connection. Every body who signns up in the initial phase gets connected at a low cost but then and every year thereafter the connection cost can rise to cover the additional work and interest on the shortfall.
Too simple?