Not the same thing.
Pricepoint always seemed like more a marketing thing to me. Something could have a price of $16.31, which is what a volume purchaser would see, but could be belong to the $20 pricepoint to which a retail customer often simplifies the price, at least at a visceral level.
I may be off here, but as I see it pricepoints are psychologically rather than mathematically significant prices, or a commonly rounded version of that price. It was mentioned in a talk at DICE 2010, that Webkins toys take advantage the fact that "to parents $12 and $20 are essentially the same amount".