There are different types of games that you could play on your computer system some requiring only basic setup whereas others requiring an advanced computer that has been purposely designed for a better gaming experience. You would therefore have to determine what sort of a gamer you are as that is going to determine what sort of a computer system would be ideal for your needs.
If you are after the best computer system that your money could buy for an entirely different gaming experience then you can definitely get access to such a system and if you build it yourself at home then you will make it more affordable so look for tutorials on how to get that done if you have no idea how it all works.
There are computer systems that are sold as gaming computers in the market however if you look at their specifications, they would appear to be more or less similar to an office system which may not necessarily meet your requirements. By building a gaming computer yourself, you would be sure of every single accessory that goes on it which would offer you the best value for your money. So make sure you always seek help through ArmchairEmpire and similar websites when you are stuck with something important.