It's not. A higher than needed power supply will not harm your computer in any way. It will simply cost slightly more and draw more power. As they are more expensive, higher-watt power supplies will often have better warranties. A higher wattage will also facilitate future expansion more easily, instead of you needing to purchase a larger one later anyway.
It's not. The only thing you'll save by buying the one with lower-rated wattage is a couple cents of electricity a month.
I believe you have that backwards. There is no such thing as too much because the computer only takes what it needs. But there such a thing as not enough power that can cause many problems including hardware failure.
To little voltage and you will be receiving BSOD's all the time as when one device draws a lot of power (graphics cards) it will suck away electricity from other devices, Now as far as to much the only downsides are cost and heat production, If you have a 1kw power supply but only need 300 watts, then you are paying 700 watts an hour extra on your electric bill, and the heat generated from a large power supply can heat up a computer case a great deal.
The Power supply gives power to your motherboard, which gives power to all the components in your computer. If you put in a PSU with a higher Wattage, you could potentially overload the motherboard causing it to not work anymore. Stick to what's close to the requirements, and this issue will not arise.
Its not, having a 700w PSU and only using 200w is perfectly fine. Its fine to have more power available than you actually draw.
The most important one is will is meet all the requirements for the task it is intended to perform. If it doesn't then it will probably be a complete waste of the money spent and a different software package should be considered instead.
Yes unless you want to smoke your subs
It's important to purchase gadget insurance after buying an expensive gadget. One huge reason is that if the gadget breaks or malfunctions, one can replace it instead of having to buy another one.
Buying from people instead of companies
installment buying
no
The most important thing about copiers is that they have ink. Instead of buying ink whenever the machine runs out, have a few spares so that you don't have to waste time at the store.
Why is the right torque so important?
paper
Acquisition
cheaper