As mentioned, cheap Epis are not so good.
My bass player bought an Epi SG bass and, sure enough,
the pickup is noisy and the tuners don't function properly.
The Epi LPs I've played have been uniformally unimpressive,
and anything with a Bigsby on it is even worse.
I'm sure, as with any guitars, there are some diamonds
in the rough, so keep searching! Play everything!
And while you're there - try out Tokai guitars - they make
some great LP copies - way better than Epi (I have one from 1980 and it is GREAT!) They make several models.
They have two price ranges, the cheaper being about $400-$500 and you can find a sweet one if you keep looking.
Remember the golden rule - Play a lot of different guitars
before buying. Some American Gibsons and Fenders are crap, so make sure to try as many different examples as you can
stomach! Don't buy a guitar just because it's expensive, and don't ignore a guitar just because it's cheap.
Guild's DeArmond guitars make a nice LP style called the M75 in the same price range.
The Dean EvO looks great but the ones I've tried were garbage.
One last note in this price range - I played a Dillion PRS
copy the other day and it was SWEET and only about $400!
Happy Twangin'
- Christian