Batteries never live up to the marketing speak. NEVER.
1000 cycles is not 5 years, but closer to 3 years, one cycle per day. Some people cycle batteries more than once a day.
Batteries sometimes fail before their usual lifespan.
AppleCare treats batteries as consumeable items, not covered after the first year.
If a non-authorized person, even a skilled technician opens the computer, and Apple finds out about it, it is possible to deny future AppleCare warranty claims. So opening the bottom of the case for RAM, HD, and Battery access is likely not "user serviceable" under AppleCare, and could void your warranty. FYI, before you take your computer apart.
Current LiPo batteries in MBP 17" laptops are starting to swell up, as LiPo batteries sometimes do. They deform the bottom aluminum panel of the "battery". Are the new ones going to do the same in a couple of years? What will that do to the unibody case and bottom cover, or other internal components? Swelling of a battery is a sign to stop using it. If the battery doesn't swell, or only swells internally, it doesn't show that sign, and could get worse, and start a fire.
I have had a swollen MBP battery in my office yesterday, and I swapped RAM today, and I often have failing hard drives that I cannot easily pull, backup, replace, and re-image. I have to send them in, and that means days or a week or more downtime, and not every user is disciplined about having a backup of their data in the mean time, no matter how much I emphasize it. I can't pull their drive, and recover the data from it, let alone replace the 2.5" standard-spec hard drive if they have a MacBook Pro.
A user replaceable battery, RAM, and HD are almost necessities, and something that every other computer that is remotely close the the MacBook Pro, all have. Service time is cut WAY down, and emergency recovery is much more direct.
This is bullcrap, it is a profit-motive and design-laziness move that will BACKFIRE, since it is going to cost apple, and thus Apple's customers on the back end, to handle all this warranty service, or it will cost the customer on the front end for non-warranty service.
It would be more profitable to make the computer more serviceable, and charge more appropriate rates, as it will get more volume of service, by being a more saleable unit in the first place.
Charging 179$ for a battery and a half hour or an hour of labor is not very high margin, unless they are marking up the batteries a lot, but LiPos aren't the cheapest things. But they don't cost 120$ either, for the specs it would take to run a Laptop.
It would be better to charge the appropriate amount for the battery and make their 10% margin on that, and and let people swap out the batteries themselves, including the people who double-up their battery useage with multiple batteries.
Otherwise sell 5 minutes of labor for 15 dollars or something to change RAM or HDD, if someone doesn't want to do that themselves, but as user serviceable accessible hardware, those of us who can, are not tied down to a huge service call, especially those of us who are third party IT support, and do this for a living and DON'T have Apple's profit markup in our pockets, and not a lot of time to spare.
This may be a fine computer to use, but it is a step backwards for anyone who will have to support it from a service standpoint, if anything goes wrong, or for mid-life battery replacement.