In my experience, you need to spend 3-6x as much on Bose to get the same quality output as "non-premium" brands. Last time I was shopping for speakers, I ignored prices/brands and went by sound. The best sounding demos were from Bose. $299. The second best (by a slim margin) were from Creative at $49. $39 after mail-in rebate. When you pay $$$ for Bose, you're buying marketing, not engineering.
And those $49 Creative speakers sounded better than the $99 Creative speakers. So don't assume the most expensive set of speakers from any given company will be the best sounding speakers they produce.
Don't pay attention to brands and prices. Go to a store that has a lot of speaker sets lined up and listen to them. After you've decided which ones sound best, you can look at prices. Forget the brands entirely unless your goal is to impress shallow people.