Pretty crazy when you really take a moment and think about it. I came to the same realization. I'm an avid Apple fan, dating back to the early 90's. Had the 1st iPhone and most every model since except for the 3G and 5S. But got tired and wanted something different so got an S9 this summer, but the battery life sucked. Got a Note 9 when it came out and was stoked on it. Loving the freshness of Android (for me) and ability to make some tweaks. Battery life on Note 9 is insanely good. Still really liking the Note 9... but I tend to have a short attention span these days... LOL
Then the itch came once the new iPhones came out. I'm wanting the new Series 4 watch, but can't use with Note 9, so figured, I'll get an XS Max. Picked one up Wednesday night... Lasted all but 24 hrs had to return it Thur evening. Just couldn't figure a way to justify the cost. And that was before buying a Series 4 (which I didn't since without an iPhone any Apple Watch is pretty worthless). I have the original apple watch which is slow now and can't use with Note 9, but haven't missed having a watch on my wrist as much as I thought. Might look into Galaxy Watch... Just not really attracted or impressed with Galaxy watches in general or Tizen for that matter...
The one thing that bothers me about any non-iPhone is that resale will be sh!t. So even selling the Note 9 now, only a month after release, it's barely worth 750 (looking at ebay). After 10 months I sold my iphone X and still got 800!
Maybe I'll check out the XR when they arrive at Apple Stores...