well first off, Matt has been on vacation for the last few days and even so, opinions on PIAA's are strictly individual. Some people really like them and have great results, others get them and hate them, so go figure. I personally think they are worth the money.
A few points on this thread I'd like to make.
First off, I do agree that they should take off their ad claiming these are similar to HID Bulbs.
Second, PIAA's are not "Xenon" bulbs as previously indicated.
I've also seen a lot of PIAA "knock-offs" especially on ebay, but it doesn't sound like you got them.
If you've got the money for HID, I'd say thats your best way to go. However, good luck finding an aftermarket set of HID's that claims to be street legal. Even the kits that replace your existing headlight assemblies come with a "low-beam add-on" that is street legal and clearly states that the use of the HID on streets may be illegal and is for off-road use only (make no sense to me but still).
Other then that I think everyone else has already made most of the points I'd typically make

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Kontrol-trak, don't post dumbass pictures, ok?