i agree with the guy, that you get what you pay for. ive pretty much gone with that for my entire set-up.
if you dont want really high quality brand names, then go with the blaupunkt. i personally, dont think there will be that much of a difference.
think of it like.. buying a Kia over an Acura. the kia will still get the job done, but the acura will give you more.
pfft.. im a little high right now, so if that makes sense, good, otherwise ignore it. thats what i think and im goin to bed..