You are paying someone big bucks to be in the front of the line.
Most EVDO cards (yes your link is 3G) are under 99 bucks (many are free) at http://www.3gstore.com
I am thinking if I should buy a Sierra wireless aircard 875... found it here : http://www.pressdigital.com.au/communications-3ggprs-wifi-security/sierra-wireless-aircard-hsdpa-card-special-p-4853.html
Tell me what you think. thanks!