Legally, that wouldn't mean anything. The odds are probably close to zero that the Customs would discover any of this, but you would still be responsible for any duties that were owed on the package.
Its called "Dynamic pricing software" and the price is going up because now everyone here is going to the page and looking at it. If everyone ignores the page for a while, the price will drop back down some.
This is what I don't like about Amazon. The same link has details that are changing by the hour, sometimes by the minute. The actual seller is changing repeatedly and even the "shipped by" can change on you....after the sale. Meaning the...
Which means read the entire listing before completing the order. Amazon will protect you, but you want to avoid being in a situation that requires protection.