You do not necessarily get what you pay for. An earlier post “Cheap Wine is Fine” showed how wine enthusiasts rated wine higher when it had a higher price tag but in a blind taste test they ended up preferring the $5 wine over the $90 wine. Now there is a similar example in which audiophiles couldn’t tell the difference between music passed through coat hangers from that which passed through pricey Monster cables. The full story is at the Consumerist. This shows again that quality is often perceived rather than actual.
There probably is a general correlation between higher priced goods and higher quality but you shouldn’t assume that to be true. Many times even if an item is higher quality it isn’t enough to make it worth the higher price. Before spending more on an item in order to get higher quality determine if it truly is higher quality and if you actually need the higher quality.