First, this isn't intended to be an anti-IE6 thread, but a thread on selective discounts et al.
A client asked me to design a logo recently, and after I gave him a quote, he asked for a discount because of the current economic climate. I offered him an agreement that I would lower the price if he agrees to a lower number of revisions and variations. He agreed.
Another client that pays me by the hour asked me to ignore IE6, and asked me instead to display an IE6 pop-up informing users that they are using a browser that is unsafe and outdated, and that they should upgrade their browser if they wish to have the best experience possible. He said that due to the current economic climate, he couldn't justify spending the same amount on IE6 testing as he used to (the site is dynamic and uses a lot of ajax).
Now, the question is: do you think that this is acceptable? or not? If so, would you offer the discounts up front? (e.g. detail them and their individual costs in the quotation/contract agreement).