I only own three autofocus lenses, the rest of what I've gathered since getting my K-x are all manual focus (oddly, the same off brand as well, I wasn't setting out to collect Sears lenses, honest!). I keep the autos in reserve for when I don't really want to have to think fast to get a shot.
That said, being able to switch between a handful of decent primes and one decent manual zoom is convenient, especially as I tend to do a lot of low light shooting and close focus stuff. (I haven't graduated to true macro... yet)
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