There's not just the build fee included. Yes it does take a while to build, but it take even longer to test everything is 100% stable - if it isn't then parts need to be swapped out and replaced, and the testing has to start all over again. The Infinity systems all come with our highest binned chips (bar the 8pack ones), and sometimes even they can't manage the ridiculous overclocks OcUK offers. I've build systems that have gone through 3-4 processors before passing our rigorous testing - and that takes a lot of time.
So what you're saying here, is that people who buy a 4.4ghz system will have a cpu that cannot possibly go any faster as you've already tried it on other builds?
Not only that but you have a 2 year warranty with email/phone support too. OcUK technicians will try to solve any issues with our systems over the phone to minimise any downtime. If it's the case that a part has become faulty and no longer works - which unfortunately can and does happen - we arrange a collection for the system, fix any issues and replace any faulty parts, as well as ship the system back to the customer, all included in the cost of the system.
I have always built my own systems, and probably always will, but I can definitely see why there's a market for prebuilt systems, and you really do get a lot for your money at OcUK. A lot of people on these forums seem to forget that you aren't the target audience for our prebuilt systems..
As for the 'small' SSD and no optical drive - you can add a few TB of SSD to the system should you wish. You can even add an optical drive if you're still living in the 90s - seriously, they are a dead technology and the less systems that have them, the better.
The SSD is small, its marketed as somewhere for rapid execution of your games and apps. You can't store a lot on 250gb, and give that the cost of a 500gb drive is only around £80 additional....
As for the sound card, if you're using headphones you'd probably be better off with an external DAC, which is why the system doesn't come with a sound card as standard - though again, you can add what ever you like to the build to make it custom tailored to yourself.