Need a guide on how buying SV works?

A while ago I saw a guide on how to buy SV with steps I searched for it and couldnt find it. Can someone link me up with that or just tell me again how to buy SV. Also is SV worth buying now (is it still good)? How much is it exactly?

This has been posted many, many, MANY times.

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That took me all of a minute to search and paste here =P