I have owned a total of four laptops. All but one had coverage. I discovered bad memory on the motherboard on the used one I purchased without coverage so it eventually was scrapped in the recycle bin.
Two of the laptops required repairs that made AppleCare worthwhile (replacement motherboard, power supply, and DVD drive). The fourth is a certified used
PowerBook just purchased about a month ago (with a third-party 3-year extended warranty) so has not had need of any repairs.
I also have AppleCare on my iMac. These cramped devices are very difficult to work on for 90 percent of users. Minimum service fee for out of warranty products at Apple is $300, not including parts. One repair typically pays for the cost of AppleCare.
BTW, you can shop for AppleCare warranties online. They will sometimes be less expensive than available direct from Apple. If you really want to save green, consider a third-party warranty like that available from
SquareTrade. In such cases, you may have to pay for repairs and get reimbursed or send your laptop to an authorized repair shop instead of taking it to the Apple Store.