The other sites such I visit such as Civ Fanatics and EZBoard for my A&A gaming allow you to stay logged on to more then one machine. I am logged on to these from work, home, and laptop when on the road. N54 only allows you to log in from one machine at a time. Despite the fact that I paid N54 for the ad free version, I still don't log in from work. The reason why is every time I switch computers I don't even get a chance to login before I get hit with a large download and the internet screen taking for ever to respond.
Where I consult at right now accepts you going on the network, but my manager is a pain. I effectively have a don't ask, don't tell policy with the net and can't afford pop-ups and the other harassment of N54.
I would probably visit this site more often if you had an EZBoard account.