Why don't you try and think why they keep stacking more and more? I don't think "bad things" are usually stacking more and more, it usually means people like it better than its competitors.
Windows CAN'T be junk pieced together as they are software, you can't even touch them.
If you mean Computers coming preinstalled with windows, that's just your opinion. It doesn't seem that junk to someone who spends a month's salary for a laptop, while a macbook requires at least 2 month's salaries, does it?
Maybe he's just thinking of a bad experience with a PC salesman? When someone goes to an Apple store, they usually get what they want pretty easily. They have to pay a premium no matter what, since Apple computers tend to start at the $1000 price-point approximately. So they're going to get that minimum satisfaction level.
When someone goes to buy a PC from say... Best Buy... the salesperson is there to clear out old material, sell warranties, and get his minimum sales quotas in. For that reason, people are going to buy cheap stuff, or spend lots on expensive junk. If they did their own research, or went to a more reputable store (or are lucky and find a responsible & knowledgeable employee at a store like Best Buy), then the consumer will get what he's looking for. I am an educated consumer. I went to NCIX and purchased all my computer parts separately, and assembled the computer myself. Had I not been so experienced, I could've gone to NCIX and paid for all my parts, and then paid them $50 to assemble it for me (I'm using NCIX as an example, it's in Canada near me... there's obviously lots of places like Newegg, Fry's, and other online and physical retailers that sell computers and computer parts).
So really it comes down to this:
Apple is a one-stop shop. It's easy. You walk in, there's very specific products with very specific and clear-cut uses, and you pick what you need and you're done.
PC buying requires a little more research. It's not a one-stop-shop. It's just different. There's a lot more variety. That means there's a lot more junk, and a lot more choices on the high-end of things as well. Sure, we can focus on the low-end and say "hey look there's so much JUNK they sell!", but that would be biased and uninformed bashing; that would be like saying "Apple sells horrible computers I bought the Mac Mini and it won't play Crysis 2 at max settings!". Everything has its purpose, its pricepoint, and its reason for being on the market. If a consumer buys something at a low pricepoint expecting it to fulfill the purpose of something that costs a lot more, then they will not be satisfied. If a consumer buys something at a high pricepoint without doing their research, and they find out that product was overpriced at the store they bought it at, then they won't be satisfied.
Simple logic, simple thinking; that's all it takes to stop being so biased about this whole argument.