Prime lenses are the best, no doubt about that. But, for versatility, a zoom is the only option unless you are in a position where time and locaion are not a problem.
If you can move around your subject for the best point to shoot, f you have an unobstructed view and maybe a slave to carry your gear, then prime lenses all the way. Oh, and did I mention a very healthy bank balance!
On the other hand, if you are a spotter with a limited budget, heaps of enthusiasm and limited access/shooting options, then a zoom is a must. This category, I believe, encompasses the bulk of photogs on A.net. And the pictures still get accepted, are still damn good and comprise a large bulk of the DB
I would imagine. Which, lets face it, is what A.net is all about.
I am currently about to open negotiations with my accountant (aka the wife) to buy a prime lens. Sadly, it will not be a 200/300/400 but a lowly 60/105 Macro with which I hope to expand my photography skills (such as they are). The chances of geting, like so manyof us, a long lens for a small mortgage is fairly remote.