I would definitely call myself a noob when it comes to audiophile personal audio gear! I know exactly what I want, and the brands to buy for car audio. That education was very unfriendly to my wallet, but after multiple amps, speakers, subs, and head units I am pretty set on my car audio system. At least until I hear something new, and amazing! Lol.
I have never believed in an "End Game" product in any product's category. Apple, Samsung, and every other manufacturer in the mobile phone and tablet sector have proven the point that consumers are always willing to pay $$$'s for the supposed newest & greatest almost every year. That is why not buying CIEM yet, and taking the universal route until I really know what my ears like is very sound advice! I would bet that even though you get to test a lot of different phones you have yet to find your "End Game" product that you are forever satisfied with, and feel no need to ever buy another pair again? I guess that is why eBay, and Craigslist are as successful as they are! Lol.
Thanks.