also fyi you can map caps lock to esc so that resolves your esc issue at the least
I'm holding onto my 2015 for dear life but it's still going very strong, i imagine i can keep using it a few more years at least
People kept saying the same thing about wanting 32GB memory in a laptop. Look what happened.
szggzs27's workflow could be vastly different than yours, and in no way invalidates either, but assuming that there's no need for a 6 core in a laptop is profoundly judgmental and ignorant.
Well maintained 2015 MBP on ebay are too expensive for the kind of hardware that they have. In my opinion, at least.