some of the bigger music websites offer ridiculous discounts when trying to clear stuff, the only problem you have is the fact that Les Pauls aren't the most ever changing type of Guitar and I can't see why they'd put one on Clearance unless of course a particular colour wasn't popular or they had an excess stock, but it's pretty unlikely. the 33% off is likely as most music websites are very competitive with eachother eg: http://www.musiciansfriend.com/product/Guitar/Electric?sku=517516 has a 34% off.

Music stores won't be so competitive and you might have to heckle them a bit to get a good price. Then again if you pick a music store that fills online orders as well they might have similar prices.