To cancel broadband card or not to

[gorelow]

thanks to some top people in here who are too smart for their own good, i am now contemplating cancelling my broadband card and going strictly with tethering. its 150 to cancel and i just started my contract again so itd still be worth it. has anyone seen times when the tethering speeds are horrible. just doesnt make sense to spend 60 bucks a month if this way will be almost as good. opinions please