Market competition in gasoline?
Market competition in electronics?
What world are you in?
Are you honestly suggesting, and do you honestly believe there isn't heavy competition for the electronics consumer?
If there isn't why have HDTV prices dropped more than 50% in the past year and half?
Why has HD-DVD prices dropped so much and Blu-Ray prices come down, though slower than HD-DVD?
Why are personal computers more powerful, have more options, and more capability at a lower price year after year after year?
I have 4 gas stations within a half mile of where I work.
Whenever one drops the price, the others soon follow, at least to some extent. Two of the stations tend to be lower in price than the others. One of them always has long lines during busy times, so the others are happy with slightly higher prices and picking up those who are unwilling to wait.
The other with lower prices is a tiny local chain of a few stores that obviously scrapes by on low margins. They often have one pump that isn't working or a credit card machine on a pump that doesn't work. Their signs are cheap. Their store where they sell soft drinks, munchies, beer, and such is what used to be the garage area when it used to be a shell gas station.
There is definitely competition at the retail level in the area.
The first CD player I purchased somewhere around 1989 cost me around $200. You could buy one with far more features for $20 now. It is 10 times cheaper now and that doesn't even take into account that $200 would in general buy you much more than it will now.
As for questioning if some retailer will be the first to lower their price on things, have you ever heard of a sale?
What world are you in?
I'm in the real one. I work in the electronics industry, and I've seen the amount we can charge for things go down year after year.