Yes that is true.

And the Murcielago is not intended as a car to bring in profit, your not gonna make a profit off a car you only build a few hundred of a year, thats what the Gallardo is for thats the exact reason why they have a less powerful/"high" production number car.

Porsches I consider to be toys as well but then again they can be driven much more practically then a Lamborghini or of course a Veyron, and they are the perfect "mid-life crises car" for anyone who can't afford a Lamborghini/Ferrari.

And the "Going Green" movement I dont think is gonna affect sales of these cars so much, they dont build that many of them so there is always enough people to buy the cars, some people just aren't to worried about Global Warming. Of course with gas prices rising it seems every week there going to have to start getting somwhat better fuel economy but I dont see them becoming Hybrids anytime soon.

Edit:
I personally think it would be very interesting if BMW bought Lamborghini, I love BMW and they have very good engineers, just as long as Chris Bangle does not touch the design at all But still I love where Automobili Lamborghini is right now and would like it to stay where it is for as long as it can.