Why, you are going to buy twitter account instead of creating your own? Also, why you want to buy followers whom you do not know and who does not you. Buying/selling accounts can be increased the chance of scamming and/or spamming. Also, operating multi account is against the twitter's policy. Correct me, if I am wrong.
Creating a new account increases the chance of being banned if it performs any activity. For example, if you reply to many accounts, you will be banned.As for the number of followers, I noticed that interacting with a new account with zero followers increases the chance of being suspended because the system automatically detects it as spam.
He probably needs account for some service, and a few years old account looks more a little bit more legit than a rand new one. But yeah, it is imho waste of money but to each his own.
It is not a waste of money, but a guarantee of not wasting effort, imagine that you create an account and communicate with users and get bannedDo you know about Twiends.com, OP? You only need 100 followers that is not a big number and you can easily to get it.
I do not need a large number of followers, but the main purpose is not to automatically classify the account as spam, and therefore 100 to 500 is enough. I also believe that increasing followers with fake accounts is a waste of money, but as I said above, I want to stay away from the automatic Twitter algorithm. 
