PC Guide : Buying a Pre-Configured PC from dealers or DIY

OK, you are getting your first pc, but you have no idea as to buy a pre-configured pc from dealers such as acer, asus and lenovo or make a pc from your own hands. But let's compare the pros and cons 1st.
Pros of Buying a Pre-Configured PC from dealers :

• You don't have to give a damn about what components to choose as long the PC suits your budget.
• You don't have to mess up your hands to assemble your pc
• You don't need to have knowledge on how to assemble pc

Cons :

• The price are typically more expensive than same specifications DIY pc.
• Too many unnecessary software inside your pc.
• You don't get to choose your components (except for dell, alienware and hp)

As for DIY, the pros are :

• You get to choose your components, such as cheaper brand graphic card or casings.
• You can assemble pc ( if you like it).
• No unnessary software inside when you powered it up for the 1st time.

Cons :

• Have to assemble your pc (most shop can help you free assemble the pc if you buy all parts from their shop)

Personally, I prefer DIY as I can have more control over the hardware I want. In the end, it's up to you.
If you decided to DIY, you can check my Hardware Rig: November PC Configuration for ideas or guides.