Some presentations require a second screen, some don't. (A second screen would be easy enough to add.) An integrated keyboard isn't always of benefit, a remote control system is often more appropriate.
Presumably spending £900 on a projector solely for use in presentations is also madness.
I've seen lots of laptops and palmtops die as a result of being dropped.
Would the toughbooks you refer to be the ones that cost £2000?