In most cases the answer is No. Typically, manufacturers will include a 1 year limited warranty with the purchase and some will go a step further and include some sort of remote assistance package. While it might seem smart to protect your new system by purchasing additional years of coverage, the end result is usually wasted money. In order to add another year to your warranty it could run between $50 – $100, for 3 years it’s close to $150.
The way technology advances, your system is likely to be out of date in 1 or 2 years so extending a warranty beyond that is somewhat pointless. If you plan to have your system around for a long time (more than 2 years) before replacing it again, use the extra cash you could put towards the additional warranty coverage and instead put the extra cash towards hardware upgrades at time of purchase. Putting that extra $150 towards a better processor, external storage or additional RAM can go a long way.