If you have to promote and eCommerce site then what you guys will do invest in PBN or PPC?
PBN's are tricky and take some time to get to work. On the other hand PPC's are quick as hell. They both are good in their own way. Its upto you what you choose. You can do both if you have enough budget.
Invest in PPC its the easy and you will get hand on results. Once you start making profits then you can invest in PBN's.