Intrinsic Value

When something is free does it lose all of its intrinsic value?

If you're cheaper than your competitors does that make your product/solution seem inferior?

When something is expensive does that make it seem valuable and a 'must have'?

When something is priced specifically or ends in a 7, does that make it seem more genuine?

When a price ends in a zero does that make it sound rounded up and therefore negotiable?

What's your pricing strategy?