Yes it is MAJORLY annoying. Some systems are better in that rather than just have a huge bunch of wires sticking out of the back, they have all the wire types bundled with a connector that you plug into the box itself, like this. You also have to make sure you read the reviews. For example, I messed up with my power supply and some of the wires were a little short. As a result my reset button doesn't work and the HDD access light doesn't work. Looking back a number of people complained about that, but apparently I missed that.I can see how replacing the power sullpy would be a huge pain with all those cables.
On another topic, a PSA: If you're using your PS4 controller on your PS3, for God's sake turn the PS4 off!
http://www.escapistmagazine.com/new...ms-on-PS4-PSN-Store-Using-DualShock-4-for-PS3