The framework
Let's perform a thought experiment in an effort to develop a framework to decide whether to use the suite or a best of breed which is integrated with NetSuite. If you are inclined to use best of breed systems. you need to  decide which modules should be replaced by the best of breed.
Let's take an analogy and pose this question: when buying a new computer, should I purchase Microsoft Office or use Google Docs instead? MSÂ Office will cost me $500 whereas Google Docs is free.
We can look at the question from a different perspective: how can Microsoft justify charging $500 when a competing product is available for free?
The answer is that Word, Excel, and so on have much deeper functionalities than Google Docs, as we can see by just comparing the relative menu items for each product. In a sense, we could say that Google Docs is for the basic user whereas Office is for the power user.
So, which should we choose?
Well, if you're a power user then your extensive use may justify the cost...