Yes, availability is a significant obstacle. I live 1/2 mile from city
water and sewer and 15 miles from Research Triangle Park NC (15,000+ high
tech workers) all for the priviledge of living on an airport. No DSL
service. TimeW Cable arrived 2.5 years ago but they placed their box too
far from my house. So when I wanted high speed cable, I had to pay $700 to
get a drop off their drop. A significant obstacle. (BTW, TWC gave me data
service without TV service). Others nearby are in same boat and don't have
high speed access.

We use the internet to find hotels but rarely to book. We are usually
looking for location (airport) and services level. Price we rely on phone
negotiations. If we don't get what we want, we wait several hours and call
again.

Speed and browsers. I just had to reload a system after 8 months of use due
to spyware. They took over despite attempts to remove with various tools.
Made IE run like mud. We now use Mozilla and run a variety of anti-virus
and anti-spyware programs. Clean so far.