I like the way you think.
I've been toing and froing between getting a 3200G and a 3600.
If I get the 3600, I will likely stick with it for quite a few years, but if I get the 3200G, I will feel free to toss it aside and upgrade to Zen3/Ryzen 4000 when it comes out, using the same motherboard for both.
Also by getting the 3200G, I can put off getting a discrete videocard for a few months or longer, whereas if I get the 3600, I have to hope my old 7850 that has been sitting on a bookcase shelf for a few years, still works, or get a discrete card at the time of purchasing the 3600.
Decisions, decisions.