What do you guys think about link buying??

its ok if you don't buy links in bulk

many people sell links and its all automated, they just enter your single title and description and click and button and you link appears on all those sites. Yes, you got what you paid for, but what a waste of money,
Google sees that your link appears on all those pages with the same description and does not trust them, they are not natural.

Buy links in very small quantities, from trusted sources and make sure each and every link is completely unique to make it look natural