Why I think that the new 13-inch Retina MacBook Pro will start at $1499
It's no doubt that apple likes consistency. If you take a look at their hardware line-up for their most-popular devices, you can see a lot of various similarities between them: aluminum enclosures, glass for places where fingers do most of the work, and light colors for peripherals. Another interesting aspect about Apple's congruency among their products is the price points that Apple sets for them. If you play close attention to the Apple online store, you will see that Apple sets staring price points to their product lines and then uses ratios to set the prices to their "Pro-sumer" lines. For example, if you compare the 15-inch MacBook Pro and the 15-inch Retina MacBook Pro, you will see that the 15-inch MacBook Pro is 80% less than the Retina MacBook Pro variant (2199*.80±1799). So if we apply this paradigm to the supposed 13-inch Retina MacBook Pro that Apple will announce on October 23rd, we see that the new entry 13-inch Retina MacBook Pro will start at about $1499, give or take $50. If we further apply this to the non-entry level 13-inch MacBook Pro, we find out that the second version of the 13-inch Retina MacBook Pro with beefier specs than the entry Retina MacBook Pro will cost about $1799.
"It just works"
Although Apple has not always been one to dramatically offer competitive prices on its Mac line, it is willing to offer the most justifiable price designations for its products. One can argue that the Mac mini is still too expensive compared to other viable PC-desktops which include peripherals and monitors for the same price. The main reason Apple does this is very simple: They use their prices to justify purchases and keep the brand image of Apple as a high-end consumer electronics company. This is why you will not see Apple marketing a Mac for less than $500. They argue that people pay for the cost of great hardware and software. Although that is true, people pay mostly for branding.
"We Still Have More To Come"
Price consistency will not only appeal to the consumer, but is directly proportional to Apple's ethos of simplicity. Instead of having multiple confusing price points and SKUs that confuse the consumer, Apple only uses two price points for each notebook and desktop. Take a walk into any Best Buy or Frys and you will see that Apple products tend to be near the center, with the plethora of PC SKUs surrounding them. Apple will most-likely keep its previous generation 13-inch MacBook Pros alongside its Retina models, and most people will justify spending a few hundred dollars more to get the better model with the better display and specs.
"But There's One More Thing"
In all, Apple's new MacBook Pro will sell better than its older cousin, the 15-inch Retina MacBook Pro. People would rather buy the 13-inch model anyway and it will likely be faster and lighter than the entry-level 13-inch MacBook Pro. Apple knows that the 13-inch MacBook Pro is the most popular notebook among students and businesses and will not cannibalize that category by competing directly with it. They will probably say, "the 13-inch MacBook Pro will usher in the new generation of notebooks, " and because of its price compared to the 15-inch Retina MBP, people will buy it in droves.