Value

Ultimately, value is the net positive emotional experience something creates and sustains.

Notes

• Value is subjective 
• All kinds of value constantly fluctuate
• Value is usually primarily expressed as a monetary quantity
• But value is unquantifiable
• Value is similar to, but never exactly equivalent to, financial profitability
• Value often carries an element of surprise

Thus you can define value as the price you pay for something, or the profitability it creates – as long as those aren’t entirely defined monetarily either.