How many companies do you know that have gone backwards in pricing? Even if the economy hits like the 1920s where we've got a state of decadence I seriously doubt they'll suddenly go "Let's sell $80 figures instead of the $120 like we've been doing." The increases might cease and that is a big might because they might want to take advantage of folks having more money but the days of under $80 for a figure a long gone.
None that I can think of as far collecting goes. You see price drops in electronics but thats it probably. I meant that as more we might I should have worded it better.