I have just hit update in KDP on Dead on Demand changing the price from $2.99 to $4.99 (or £1.99 to £2.99 inclusive of VAT).
We previously advocated the sweet spot is somewhere in the $2.99- $3.99 range, and we wanted to see what affect the new price has on Dead on Demand. Dan's theory is that by moving up in price buyers are more likely to self select via sample. We were never 99c so not quite an impulse buy, and the new price is still much cheaper than with a legacy press.
We're going to keep it at this price for the forseeable future, but may well drop it back down when the next novel comes out, or for a temporary promotion. The other benefit of this is that the income per copy obviously increases to approximately £1 per author for the work, which we think is not unreasonable.
A print edition is currently in the works, but this too will be much more than $4.99 simply due to the costs of art/ formatting/ printing/ shipping & giving a middleman or two a cut (distributors & retailers). There isn't a great deal of margin in print volumes, but we know a few people have asked so were going to try and get a print version out for those that want one.
If you haven't picked up a copy, and are quick you might be able to snag a copy at the introductory price before amazon make the requested price change.