fret buzz on low end basses

I decided I should be a bassist so I've been shopping for a cheap (but playable) bass so I can test the waters before investing too much.
Anyway, many of the user reviews I've been reading for the lower cost basses mention fret buzz as being a problem. At first I just figured these were inexperienced players who didn't know anything about setting up a guitar and probably needed an action adjustment on their out of the box bass. I've played guitar for a long time and I'm perfectly comfortable making these adjustments, but I've seen it mentioned so many times that I can't help but wonder if there is something about cheaper basses that make them buzz more. Should I be worried or is this just beginners that don't understand the problem yet? I imagine that fret buzz would be more of a problem with a bass but I don't mind jacking the action up. I think I'm going to go with the Ibanez GSR200 by the way.

My OLP basses are stone quiet when a string is not vibrating. So much for that theory.

I just paid $65 to have the frets leveled and dressed on a G&L L2500. This is not considered a low end bass. G&L just did a crappy job on the frets.
I picked it up used off of Ebay for a pretty good price so $65 for a fret job wasn't too bad.

I played a brand new Korean made G&L SB-2 Tribute not too long ago and the action was super low with no buzz.

I think that if you cherry pick a low end bass, you can end up with a good one. Two of them sitting side be side may not be the same.

Cheaper basses have bad, little or no shielding for their electronics which gives them their "hissing" sound. The better the bass, the better the electronics are shielded, in most cases.

When I bought high end, I cherry picked amongst them too. Even at the high bucks level, there is a lot of variation between instruments.

I have an OLP 4 sting bass that I bought used for $100, set it up myself and the frets don't buzz. I think it would either be a poorly setup bass or a bad player who is not fretting properly.

Neither my OLP four or five string bass buzzes, after being set up properly.

Fret buzz can also come from not being used to playing basses.
You just don't push the strings down hard enough or you are too far from the fret.
I have had guitars that had one fret that was higher than the rest causing a buzz but a tap from a rubber hammer cured it.
Usually a good set up will cure fret buzzing.