I'm needing a new Macbook, and this seems to be the biggest question. I do a lot of Lightroom Editing, and soon will be doing 4k video editing. I'd love this MacBook to have a good amount of longevity to it. I plan on going 1TB for each model. If I went 48gb, I'd probably just do the extra $180 for the 64, but the big question seems to be if the jump from 36gb to 48gb is worth the $1000 (requires the chip upgrade to make that jump).

I've looked through some of the other threads and didn't see clear answer on this question. Please direct me if has been asked. Thanks!