In case anyone happens to give a damn about a random internet dudes opinion:
I don't count. I know my count is low...less than 100 I'm sure. But I absolutely consider myself a fairly seasoned enthusiast. Why? Because my low count includes some of the most unique and important roller coaster experiences in the world. I've ridden one of the only two strata coasters in existence (TTD) many times. I've ridden one of the few giga coasters in the world, many times (MF). I've ridden two of the 5 (5 right?) roller coasters in the world with 100+ mph launches including Formula Rossa (and yes, ignoring the fact that it is actually a great total ride experience despite people who haven't been on it crying 'one trick pony', a 150mph launch alone, by itself, makes it worth the trip because you cannot get this experience anywhere else). I've also ridden a few 4D coasters, flying coasters, etc. I've even been to Holiday World and ridden some of the best wooden roller coasters on the planet. So with a very low number, I've experienced a very wide range of roller coasters and ridden some of the best the world has to offer. For me, this is what it's about. There are many times I've been to a park and skipped a roller coaster simply because I didn't think it would offer anything new or expand my experience in any way.
The question I ask before getting on a new ride is: 'Will this roller coaster offer something new to what I've experienced?' If the answer is a definite no, I skip it.