I thought I'd come back and add a couple more thoughts on the OP's question.
One thing I have found, which is interesting, is that while Dodge decided to lower the price of the Viper 15K, the owners selling their used Vipers did not follow suit. So, what you have is a situation where, for example, there is an '08 for sale at a dealership that has been the sole owner of the car (must have been a demo), its Very Viper Orange with Silver stripes, it only has 3800 km on it (a little over 2000 miles), and they are asking $76,000.00 Similarly, there are other owners trying to sell Gen IV cars for over 75K (low mileage as well). So you begin to ask yourself, "Why wouldn't I pay an extra 10K and get a brand new Gen V with a warranty and all the other upgrades that come with it, and skip the agony of having to explain to the seller that they are asking way too much for their car given the price of the new ones?" I recognize that the Viper doesn't depreciate as quickly as say, a Vette, or a Porsche, and I also realize that these owners are basing their pricing on what they paid etc., but it is a little ridiculous.
So, to answer the OP's question, if the market remains as it is, and people continue to expect much more for their cars than they are worth in light of the price reduction, the Gen V cars are actually becoming more attractive. Besides, I think it is an absolutely stunning design, and for the reasons I stated above, it really is a very special car. It will be interesting to see what happens as Spring approaches