If you want to see context aware pre-fetching done right go to mcmaster.com ...
There are good reasons to have a small cheap development staging server, as the rate-limited connection implicitly trains people what not to include. =3
Making it easy to buy stuff from them definitely helps their bottom line. Unfortunately the few companies I've wanted to buy from but their website was horrible and made me go elsewhere, either completely ignored or dismissed my complaints about having just lost a customer.
There are good reasons to have a small cheap development staging server, as the rate-limited connection implicitly trains people what not to include. =3