honestly, in today's market...people looking for value for their money. Its not really a Super size type of world anymore in my opinion.
With that being said...i think your pony arent you amps, but your sales of everything else pretty much on your site. I know it sucks to have to buy at a certain price and sell at a certain price, but its not going to make you any money sitting in a box in your store room. Also, as you know how this hobby works, 95% of gear gets cheaper over the years, so the more you decide to keep it, the lower the overall value gets. The HD650s are pretty much around 275$ on the used market. People going to lean towards that since money is tight for most. If you keep that and try and sell it at 400-500$ you going to find you going to end up keeping ALOT of them. By the time they are phased out, you going to have to sell it cheaper or be forced to keep them. Just like the HD580s.
As the economy is now, you shouldnt be RAISING prices, you should be cutting them. You raising prices is just going to increase the amount you will NOT sell. You shouldnt be create new $4K amps till you sell the current stock. You should see how this effects everyone and adjust...that means making a flagship item for cheaper then most....people want value for the dollar. Thats the market you should be aiming for.
Are you going to take a loss? Yes, in the beginning, but i believe if you look at the big picture, you might gain alot of business down the road. People will see that the economy is hitting everyone and businesses trying to adjust to the market. Also, how much money are those maxxed balanced bringing in? Enough to justify keeping it at 4k? Maybe try marking it down a tad, make 3.5K or lower....would you rather keep the amp or lose a few hundred on the markup? Until the economy stabilizes, i think we ALL need to take some sort of loss to even stay in business.
This is just how i see it...i know, im not a marketing genius...just how this average joe feels =)