With PPC its very important that you evaluate the traffic that you get from the source. As stated in a post below: as long as you earn more money than you spend, PPC is a great way of getting more customers. It can even be worth it if you loose money for every sale. If you know that your average customer buys two or three times, it can be well worth to loose money on the first purchase, the second purchase make you go even and you earn money on the third purchase.
So the key is statistics. In reference I can tell you about vouchers. Some of the biggest retail stores give away vouchers worth 10-20 usd. Why? Because they have statistics that the average customer that use the voucher buys for 100 usd. So in this case the retail store earns money in the end on the average customer, even if they give away vouchers.
I would suggest you to try a campaign and then evaluate the traffic using google analytics. If you pay 10 usd on a ppc-campaign that will earn you 11 usd in the end. Then my advice to you is to increase the ppc-campaign to 100 gazillion usd. Then you will earn 10% of that...which is alot..:-)
Its all about statistics.
Last edited by Freelander; 09-14-2012 at 10:36 AM..
Reason: Added currency use