1.   But, given that penguins are relatively rare birds, that turned out to be prohibitively expensive.

2.   Buying new glass and having it cut to size can be prohibitively expensive for the home tank builder.

3.   For families of low income such items are almost certainly prohibitively expensive.

4.   Long-term nursing home care insurance is prohibitively expensive.

5.   Meanwhile, people who might want to put down roots in the community are finding it prohibitively expensive.

6.   Moving house would be prohibitively expensive.

7.   Pollen-moving wind would have been prohibitively expensive to manufacture.

8.   Start to phase out nuclear fission power stations, which are prohibitively expensive and potentially hazardous.

9.   The computer was superior to other models, but it was prohibitively expensive.