It depends...on the product (not so much on the price)
I had a SONY Vaio laptop totally fry after 16 months, but the manufacturer's warranty was only for 12 months.
However, I was protected because I had bought it on our American Express card which provided an additional year of coverage.
I would NEVER buy any laptop without some sort of extended warranty.
The replacement I bought was from Costco which added one year to the manufacturer's one year warranty, and I used my American Express card again to get a third year of protection.