Be careful changing the price of pre-orders. If you start high and then reduce it, the price goes down for EVERY pre-order in the bag at that point. On the other hand, if you start low and then increase it, the low price stays for the early ones, and the later ones get the higher price.
At least, that's how it used to work.
Still does. afaik
Better to set a pre-order price low, then change it up a day or week after release.
Mind you, I don't understand the release low philosophy.
I get that it can work to boost rank, but unless it does so into the top 200, you're leaving a lot of money on the table, because below 200, most of those people would have bought regardless of the price. And at 4.99 instead of 99c, that's a huge amount left on the table, that takes a huge number of additional sales to get back.
Anderle was an advocate of the 99c release, although I'm not sure he does it anymore. But he did used to get his new releases in the top 200, and often 100. So maybe it worked for him.
But if your releases normally top out around 1000, I can't see any benefit in using 99c to release at, since you'll probably never make back what you leave on the table by doing it.