I think the hardest part with Monster is that the consumer isn't just poorly informed, they aren't really making a 'bad' purchase with Monster. I mean, this isn't a Bose system we are talking about - it is audio cables. In test after test after test, Monster Cables tend to perform as well as possible. They meet the demands to maintain a close to 75ohm connection - and do so through the assembly as well (very difficult).
The price is outrageous, but you, at least, aren't getting junk cables which don't perform well. So, while I do steer people to Monoprice, I do not feel like they have been ripped off to bad when they do get Monster - at least you can expect the cable to work well.
I personally, as a custom installer, will only use Monster CIPRO for my in-wall custom installation work. The cable is simply the best I've ever used and my cost (dealer) is similar to what I get on cables from West Penn, Liberty, or other cable manufacturers, yet the Monster TRULY is easier to work with. Notice I said - easier to work with, not 'outperforms'. It doesn't outperform, it simply is easier to install - and that saves me time and money.
As for Pioneer vs. Panasonic - The Elite series does have more markup, but the standard Kuro lineup is very competitively priced and outperforms that Panasonic any day of the week. My 60" Kuro cost me less than $3K from Sams Club. If STORES choose to raise the prices, then that's the stores decision, but there is no question that the Pioneer displays simply have the ability to outperform the Panasonic - ISF calibrated or not.