Agree with jhnkvn, it's the technical capability and not the price...

I started with a 2DIN DVD HU of pioneer. Satisfying indeed, the quality of video and audio it produces will definitely separate your stock HU. Having the HU that good, I changed my stock speakers to a pair of Hertz ESK 165 seps. It gave justice to the HU's capability, hearing every note and instrument separates, giving you that "stage" in front of you when you listen to every music.

But when I tried going back to a 1DIN Alpine 9887 (Actually it's my first time to try alpine, pioneer ever since I got hooked with car audio). Boy... It was a HUGE leap! The pioneer DVD settings was a far cry from the features and settings of 9887. First install of the HU, I literally drained my pickup's battery kakapakinig, he he, to think that they are on the same price range (mas mahal pa ng konti ang Pioneer).