New systems are unlikely to come about unless people, in time of crisis, see an attractive alternative.

Senator Obama - at least for the time being - is an extremely attractive alternative.

For now, it offers an attractive alternative to more traditional methods.

With interest rates at unusually low levels, this appears to be an attractive alternative.

Further economic expansion could bring a continued rise in pay and an attractive alternative for millions who have left the work force.

Yet another attractive alternative is the increased use of seaweed.

A more attractive alternative is to reshape the whole plant.

All of which sets up Web radio as a highly attractive alternative.

Until now, no boat has been fast enough to provide an attractive alternative to the train.

In that case, it must, however, offer an attractive alternative.