Competitors' amps yield little or no profit margin. At the competitors' selling price, Parkervision can generate substantial (I'm guessing 70%) gross profit margins due to the inherent simplicity of the circuit and the manufacturing process, depending on economies of scale.
All this while offering the cell phone manufacturer more extended battery life and better RF performance.
There is no reason to compete with the big boys on price, unless they try to undercut PRKR to save their market share. Parkervision can still make some profits at half the price, while competitors would have to decide how long to operate at a loss. RFMD isn't exactly rolling in cash.