It happens to all of us, that moment when you see something and you really, really want it.
The real question you should actually be asking yourself is;
Do you need it?
Some good advice would be – do not buy it immediately.
Rather wait a few weeks, go back and look at it again, if you still want it after a period of time, then it would be acceptable to buy it, however experience have shown that in the most cases, you will have lost interest over the time period of a few weeks. Believe me, you will be grateful for the money you save by not being impulsive, because at one time or another there will rise a cash emergency where that money would come in very handy.