Smoker,
You have to consider the source when it comes to someone raving about a product. If Bubba has Sony in his car, he's not likely gonna rave about Pioneer.
Next consider the dollars aspect and ratios. You figure, it's (at least) probably ten walmart shoppers to every one custom shop customer.
Demographics... 16-21 year olds don't usually have $3,000 to blow on systems, which kinda rules out Alpine decks and JL amps/subs. Certainly rules out McIntosh, Audison, Focal etc..
Even though I'm older than the demographic, and majority of car audio consumers, I still have a budget to consider. Sometimes less budget, since I've got "grown up" stuff, like bills, to deal with.
Here's my story...
I enjoy playing with bargain stuff sometimes, just to see what it can do. Try to make alot out of a little. I'm good at that, never had alot of money, always had to "make due".
Some of my experiences include... a $60 CircuitCity advertised special cheapness Koss headunit. I had a Blaupunkt deck ignite in the dash before a road trip, needed a deck fast and cheap. That Koss worked good for 4+ years. When it started erroring, I sent it back to Koss (with a $40 money order) and they sent me a brand new HU.
So I combined that "Xtreme Sound" brand deck with some Lightning Audio coaxials from walmart. Sounded good off the HU, but really came to life once I added a 4x35 watt Sony amplifier, also from walmart. Up to this point I was pure walmart equipment and I was pleased with the bang I got for the buck.
Then I picked up a great custom enclosure with four 8" MTX subs.
You can see it here. Only had an
OLD Jensen 2x100wt amp for it, so that sufficed awhile. Bought that amp used (and already old) from a pawnshop back in the early 90s.
After awhile I ordered an Audiobahn Dub amp, 1x400w@4ohm which is ideal for the enclosure... I think it cost me $69 and at the same time, an upper-level Sony Xplode headunit for just under $200... At that point, I was
very happy. The Sony HU will be with me awhile, it features Burr Browns, an excellent display, and really impresses me with features and SQ. The amp did exactly what it was supposed to, and did the job quite well.
This was a junk vehicle to begin with, not much sense putting $10K of audio into a $300 car. Bottom line is that, over the course of 3-4 years, this bargain basement equipment kept me quite happy. Best of all, it sounded good, got very loud, and could put alot of street-boomers to shame.
None of that equipment gave me problems. I never regretted buying any of it. Granted, it was all nothing to brag about brand-wise, but I feel what I accomplished on a budget is/was very respectable.
While driving my junk car, without any car payments mind you, I've been able to save up money... and just bought a brand new car... and some very respectable new audio equipment also. I'm movin' on up!

but I actually miss my old system (packed up in the house here) since I'm stuck with a Pioneer Premium factory system in this new car for now.

Its the single most depressing downgrade ever.
I think a key consideration missing in forum communities... is understanding. Coaxials and cheap decks are all some can afford. We can't exclude people simply because they have to go the walmart route. Everyone is capable of progression in any hobby... and everyone has to start somewhere.
If you have a budget of $400 to work with... and because of food/rent/school can't see having much extra cash anytime soon... You've got two choices:
You can get started with a complete walmart system, and then upgrade little by little...
or you can stick an Alpine deck in the closet, until who knows long, when you can buy good components, to put in the closet till you can buy an amp... on and on... someday you might have some audio in the car. Get my point?
On that same token, it sucks when people bash Sony and Audiobahn. I'm sure it makes the people who own this stuff feel like shit.
(that alone is a very good reason not to bag on brands) And this is the exact reason I bought my Sony amp + HU and Audiobahn Dub amp... because everyone hates it, yet hearing my old system, you just
cannot bag on it.
Granted, it may not be the best stuff, but it ain't Cuspid, Audiovox, or Pyramid either. I can't hate on something that delivers what its spec'd at.
Sorry for the long and somewhat off-topic post/threadjack. If anyone bothers to read it, I hope you get some insight as to why
I'm the voice of unpopular opinion.