You can use it for pretty much everything. The quality of a Custom built PC is much Higher than that of a Prebuilt as well and is usually quite a bit cheaper depending on your workload (If your only doing the basics like browsing the web, Netflix Streaming, Email, etc then a Prebuilt will be fine). The biggest example would be in the Gaming PC department. An example would be:

• http://www.newegg.com/Product/Product.aspx?Item=N82E16883101228&leaderboard=1
• http://www.newegg.com/Product/Product.aspx?Item=N82E16883158717

and many more like these ones are Complete Ripoffs and shows how bad prebuilts can get gaming wise (Note I used the Newegg Filter for Gaming PCs and these were in there. As well as many others that shouldnt be). Now if you custom built one for $750-$1000 you could get these 2 PCs:

PCPartPicker part list / Price breakdown by merchant

PCPartPicker part list / Price breakdown by merchant

Both of these parts list contain Higher quality parts, Perform better in games and just the same in basic task (The 6000 series CPUs arent much of a bump to warrant buying into them yet), Include the OS (If you dont need Windows key then just get a KBM or better GPU), and arent even completely optimized for best P2P yet. Dont mean to hate on prebuilts since you can get some good deals if you can catch them on sale like these two:

• http://www.newegg.com/Product/Product.aspx?Item=N82E16883227642 I got it for $673 on sale. Replaced PSU and added an 850 evo 250GB to it. Gave to my Cousin for late Christmas.

• http://www.newegg.com/Product/Product.aspx?Item=N82E16883102107 . Replaced PSU and added 250GB 850 Evo as well. Got it for $640 (Bought 2) and gave them to my 2 Kids as late Christmas.

Both of these have since shot up to there normal price but the sales can be good if you shop around. Dont rely on these sales though cause they are hard to find.

In all though it depends on your use case but since PCs are expandable you could build say a Gaming Machine or Office PC and Expand it to suit other task as your use case changes over the years (Prebuilts I wouldnt rely on for this since they are usually using proprietary boards and non standard Connectors so Upgrading is difficult in some). I do recommend building all of your PCs in the future even if it means you have to troubleshoot and stuff yourself.

Another benefit I forgot to mention is that the Warrantys are on a per part basis and are often better than what you would get with a Whole System warranty.

Honorable Mention for worst Gaming PC ever:

• http://www.newegg.com/Product/Product.aspx?Item=9SIA5962GY4874 Yes I realize this is refurbushed but the fact Newegg even has this in the Gaming PC filter is very bad. Heck its heavily outdated and would be lucky to run minesweeper. Probably worst P2P ratio out there.