my company has around 60 telus aircards @ $100 / month each. unlimited in Canada and USA.
I have one of them
$35 is nothing for companys
our first bill was over 10k in one month (and we only had 20 or so then). apparently they didn't put us on the unlimited plan the first month... oops.
if you think we spend alot a month on aircards.. you should see the cell bills. and sat phone bills.
aircards are great in ferry lines and on the ferry. no wifi. (not yet anyways, that's something they should do!)