Now I've got a full set of primes from 10 - 90mm I love going out with them. Zooms are more convenient and cover a greater focal range so would seem an obvious choice. But it's not that straightforward. With a set of primes it's more inconvenient to switch focal lengths, lenses have to be changed, and you have to contemplate the composition far more than with a zoom. Which prime will best suit this scene? Then when you decide, usually a bit of leg work is needed to move about to get the composition just right, left a bit, back a bit, Hmmmm a bit more left etc, you become engaged in the photo, far more than using a zoom and the ultimate result is often a really good composition that shows thought and contemplation and is very satisfying. I've often ended up with compositions I wouldn't have got with a zoom because I would have stood where I were, zoomed until the composition seemed OK then grabbed the shot, the shot might be fine but sometimes that extra effort with a prime makes all the difference. I find I either go out with primes or zooms, I enjoy using both but have found using primes makes me a better zoom photographer as it's taught me to contemplate the composition a lot more.