Yes, and Switch is peaking early.
There's no signs or even reasons for it. I mean, the Switch is selling like hotcakes in it's third year without having had a single pricecut yet. What's more, Nintendo themselves stated that they will support the platform for longer than the usual 5-6 years, so software support shouldn't break away anytime soon, either.
In fact, I expect that Nintendo will bring a more powerful Switch version somewhere down the line (2020 or 2021, probably the latter) to replace the current new version with more bang for $300 (somewhere closer to XBO in terms of power), which will extend it's lifespan even longer than the 3DS's was.
The Nintendo eShop rating Thread: http://gamrconnect.vgchartz.com/thread.php?id=237454