Experts say it is also likely to prove far more expensive.

At the very least, the industry is moving toward several important changes that are likely to prove expensive to small investors.

The program proved too expensive to continue and lasted only three months.

Over time, however, it may have proven too expensive to run.

So far it has proved very expensive in treasure and lives.

Taking care of customers is certainly proving expensive, if nothing else.

This is likely to prove expensive for schools with more experienced teachers.

But, so far, our fear of it has proved much more expensive.

Come the end of the season, these dropped points could prove similarly expensive.

This has proved expensive in terms of court costs and judicial time.