Thanks for sharing your thoughts, a few comments:
1) at the moment our BiddingHelper.com shows a 2.5* hotel in this zone for $63/nite, which is nearly a 40% discount to prevailing rates available to the general public (ie- non-military rates), which sort of negates your larger theory above (although not to say the savings were not there at the time you had booked, perhaps just unlucky in regards to what was available at that moment)
2) Smaller hotel markets have less competition and hotels don't need to discount as much, so in smaller or rural areas where there are not many hotels, you may not see as much of a discount as in other larger cities (such as NYC, Las Vegas, Los Angeles, Chicago, etc) where the savings can still be quite substantial. So in one area the discounts may have dried up a bit, there are other locations where there are still very deep and substantial savings to be had
3) some hotel markets have gotten stronger over the last few years, so in many instances occupancy rates are up and hotels are not willing to discount as deeply as they may have years ago. In these instances, revenue models have also improved (with the increased processing power that computers have today vs. 10-15 years ago) so hotels are now able to better analyze data and adjust rates more frequently to maximize their revenues.
Please remember to return to BetterBidding and use the PRICELINE and HOTWIRE links on the board to begin your travel purchases... or thru our sister site MAPSandHOTELS.com for your regular rate purchases.