buying links is good as you can get more back link's in no time but just spending some money. But be sure that you are getting good and quality back link's for your money .
Buying links is not so welcome to Google as only some specific group of people are getting benefited from these. The people who have money only they can have high page ranked backlinks whether they having duplicate or low quality content. This is one kind of discrimination thus Google include buying links in the category of Black hat.
When you will buy ink it should not look like that you buy link form that site you can easily hide that, buy from a trusted site with relevant them ask them to place link under sponsor/or partner section
This is not correct, buying links is against Google guidelines (unless they are nofollowed). It's rare that Google would punish you for it though, but if they found out a site was selling links they would discredit those paid links and you would have wasted your money. If you do buy links buy from a site that does not advertise that they are selling links and make sure they are 'guest post' style or contextual (not sitewide blogroll or footer links). From the horses mouth: http://www.youtube.com/watch?v=_r2vp4x-JtU
you need to buy link of higher PR or links from web site having C class IP these are parchments links then your site should have higher PR
No they wont ban you, if you buy perm links on high PR domains then you'll go up in the SERPs do your research and you'll see
When you buy links,make sure that they are not selling other links and posted your link in the same page as other links.Better is guest blogging which is also permanent,where you get links inside the text which is more valuable.
It depends on which sites you purchase those links from... I've bought links from reputable sites that have good number of backlinks from quality sites and who do not make it obvious that they sell links. If, however, you make the mistake of buying from a link farm then you are looking for trouble. You can generally identify bad sites if they only have a long list of links with little content.
plz avoid this thing dude. it will badly affect your site. i don't know how Google catch the paid links but they do. so taking a paid link is just like calling the danger.
Instead of buying links and wonder when your site will get banned by google, do it right. Directory links free, article directories free, blog links can be free if you write good content, forum links free. it is all free.