Quote Originally Posted by Cytoman
Right or wrong, I have shied away from the big primes because I prefer the versatility of the telephotos. When my passion turns into an obsession - I'll likely add a prime or two

You posed your question to many people with an obsession. Take out a loan, and get as many primes as you can possibly buy, and a couple of 1D series cameras body's. You always should have a backup.