If you have a single server co-located, expect to get charged for someone's time to be with you whilst you access the server.
There's very little margin in co-located servers, so having to have someone sit/stand with you whilst you mess about with your server every week is not going to be profitable for them.
Do data centres generally have workstations for customers to access their servers ?
I might be able to do what I want to do with gigabit Ethernet connection and access to a DVD drive.