Any view likely comes with the downside that the canyon down to the 15 will act as a white noise funnel, giving a constant ambient background of poorly-tuned trucks downshifting to climb the steep grade or “Jake Braking” (noisily using the engine rather than the brakes to slow) on the northwards run.
Other examples of the view/noise tradeoff are the spectacular Mission Valley view homes on the north side of the mesa, where you have to raise your voice to talk over the roar of the expressways. Yuck.
(Oh, and don’t be fooled by the lot sizes around here… the property lines were typically drawn to a line at the bottom of the nearest canyon, but most of the land is steep and unusable.)