Growth in revenue is vital in order to present a positive picture on the business and generate the desire to acquire. If revenue is not growing why would an acquirer be interested? However, invariably the value will be calculated from profitability. Therefore, focus on top-line growth whilst maintaining price/margin.
Track spend and investment carefully so that when you come to sell you can easily create an adjusted picture of the underlying profitability are one-off expenses. You can always be creative in adjusting overheads, you can sometimes with direct costs, but revenue has to be sold and delivered.