Do any of you purchase online, if so what kind of experience you have with online shopping, good, bad? Do you resort to online shopping because it's more convenient or are prices the key factor?

I don't have much experience with online shopping, I bought few items, my N93 among others, so far it's all been legit. Still, I prefer going to real stores to purchase items I need. Few of my mates had terrible experience with online shopping, one of them bought HTC Legend which suddenly stooped working after couple of weeks, he couldn't do shit about it.