Hi there. Just want to ask some questions: If you are able to purchase a high pr link, when (what time) will you purchase the link? Right after a PR update? Right before a PR update? Or anytime? So do you think you will buy one now? Or wait until the next update? I just do not want to throw money away without helping my site PR. Thanks.
It depends with whome you are purchasing links, there website theme, purpose and future prospects of that site. If any website having the long vision and mission then PR definetly going to Increase if not than that link would definetly going to worth for you.
you are always after and before a PR update, you are always in a period between. It's just a question of weeks (3 or 4 months) in fact a short time. So if you have a real long term vision, don't care with it. The main question probably is : Do I buy or not ?
I'd say it depends on what do you need this link for: if you need it for PR purposes ONLY, then - before an update IMO, if you want to get higher in SERPs - it doesn't matter since Google updates its results all the time.