It seems like apple can continue to grow ‘unit sales’ by introducing new products like the watch at a regular pace.
Of course, the iPhone was a unique product in terms of how it changed the trajectory of Apple's fortunes, and likely can't be replicated. It's dominated 24% of the company's history. (10 years between 2007 and 2017; Apple was founded in 1976)
If iPhone sales are flat, goosing the price makes sense, but it isn't the future of the company.
To be honest, as a technologist, I'm sort of relieved. I'm interested in what's next, and now that the iPhone (and smartphones in general) is a refined product, I'm really interested in what's next in tech.