Does anyone else find it weird that in the ad, some of the prices are the final prices, after rebates and instant savings. However some of the items say the price before instant savings or rebates or such. What does this mean? (For example the 42" plasma panasonic 'says 999 before 300 instant savings, yet the dvd/vcr player a few items below it says 49 after mail in rebates and instant savings.) Why would they do ea'ch item differently?