I will go for service and quality. Let me change your rule like if we pay somewhat high price then definately we will get good quality and service for anything (99% true). Everything (i.e item or products etc ) needs quality and service to use it for long time and for that need to pay good price.

I have seen many cases where all 3 exist. For example, a lot of popular shopping sites can give you good quality products at the best price, and can still give good customer service. Companies can find and sell good products, give a competitive price, and instill a culture of service.

I think that the business who eventually succeed and grow up big are the ones who struggles to provide all these 3 elements. Think as a client- You are looking for someone who can deliver all of this stuff, any one of them is crucial!

Yes, all components are cruicial for successful business development. If you provide good service and price, but low quality none will decide to buy your products. If you provide high quality products at good price, but service leaves much to be desired, you will have sales, but some part of clients will refuse from making a purchase. But if product quality is high, service is great and the price is high I think that a business will be successful and it is the best combination, I think. When for example, enterpreneurs look for hosting they are ready to pay the highest price to have the most reliable business solution for their websites. A rule is simple, the better service and quality - the higher price is!

Customers want all those 3, so we better give them that if we want to win them. It's hard though. I think big companies have more leverage because they can buy good quality products in volume and then offer the products at a much cheaper price.