Warped Records

I would say about 75% of the new records I have purchased online or in some of the local shops are warped. The outer edge will almost always have a big hump in it, I can't tell if it is really affecting the sound but it is very disappointing.
I got four new records last night all but three were warped & the one that was not warped skips. Also they seem to be very noisy, The new 200g Led Zeppelin's all have some large pops in them. On a earlier date I took back some warped ones to the store & they put it on a turntable & told me it was normal.
ANother time I sent five records back to amusicdirect.com & they exchanged them for five more warped records.
What's the deal? Anyone else seem to have the same trouble?