Great question - not sure if I can speak for the fragrance industry (I'm not a SA nor do I work in fragrances), but I agree that you see more and more scents debuting only in sprays. Which is fine with me, I prefer sprays.
If I recall, Serge Lutens scents come in a bottle with a screw off top that can be splashed and then they also come with a sprayer that you can screw onto the top of the bottle, to turn it into a spray. The first time I saw this I thought it was a great idea, because it would appeal to either choice. Most likely Serge Lutens can 'afford' this option at $100+ for a bottle of their scents.