Samsung White Dot Problem Costs Absurd

I too am suffering from the "white dot" issue with my Samsung DLP TV - The customer service team at Samsung has tried to be helpful, but after having been through three of their self-selected repair companies, it looks like this is still going to cost me $200-250 - Samsung offers to provide the part (DMD chip I believe) but the service call costs a minimum of $90 (which is the best price of their three choices) and the repair is estimated to cost another $100-$150! This is the best price offered by any of the three local providers - The first two refused to give a quote of any kind in advance (the first one, which Samsung tried to send me to twice, wouldn't even accept that Samsung was going to pay for the part itself, and had been planning to ding me for the entire thing).
Samsung seems to have honest intentions, but the execution on this has been horrible, and apparently I will be lucky if I can get their defective TV repaired for as little as $200-250, or about a quarter of what I could spend to just get a brand new Sharp Aquos of similar size. This is really frustrating, as I have always liked my Samsung electronics, but if this doesn't get resolved I don't see myself continuing as a loyal customer with a company that can't been loyal to me, and can't even seem to get their own service contractors to do the work they are offering me.
Is anybody else having this problem getting the promised fix?
If anyone cares, my Samsung confirmation number for this issue (the third one I've had, since I keep getting the service contractor run-around) is 4113559085.