Thanks a lot @Komang and @RokuNB.
If I have to keep the devices in two pools (low-end and high-end), according to model number, 4200X may be a cut between low-end and high-end, as I observed. Although there will be some compromises as some high-end models will go into low-end bucket, and some mid-end models will be moved on high-end buckets. Please guide if this is fine or will it be better to create more than two buckets as Komang suggested.
Accidental Roku Channels Enthusiast
Analog by Birth, Digital by Design