Not that I am an expert, but it looks like the brunt of the increases hit the professional lines, which I get the reasoning for but I also fear the impact on actual professionals, since many are freelance and do not have the deep pockets of the old-school corporate professional paradigms.
That said, I also think the following:
Apple is banking on the adage that not everyone upgrades every year, but every year someone needs an upgrade, which has been their standard and is baked into their ecology/environmental calculations (Apple devices last longer in the wild (assuming the owner isn't abusing expensive electronic equipment), so there aren't as many hitting landfills even after reclamation efforts). And they are also banking on the "whales" (to purloin a gaming/gambling term - the folks who must have the latest and greatest). But I suspect Apple is also expecting a hit to their bottom line, unless they come up with something really enticing.
Apple isn't going to lower prices, rather they will conceive of more "value adds" that sweeten the pot for the higher prices, or they will re-engineer the consumer devices to have a lower price point, since the price hikes hit the consumer heavier than the professional (in theory, according to Apple's perceived logic). It would be easier to roll back the lower price hike on the consumer models. I just don't believe the pro models are going to get cheaper, but I do believe Apple will put more zhuzh into them make the cost more palatable.
My take is - if you were looking to upgrade, do so now if you can find a deal. That way, you can wait out the hike. I wasn't looking to buy this year anyway. All my devices are new-ish, with only my phone getting long in the tooth. But I can wait. I am aiming for the 19 or 20, depending on purely cosmetic decisions. That would put my current phone at 5-6 years, which has been my running average.