Replying to Laptop question

So, I haven't bought a new laptop in four years, and my 2013 MBP is starting to feel it, so I think I might need to upgrade, especially since there is a lot more video editing in my future.

What I have now:

MBP
2.4 ghz i5
8gb RAM
128 GB SSD

I know I don't want the new MBP, so I'm trying to decide between a refurbished MBP or something else. I'd like to stick with an Apple laptop, but if you can convince me otherwise I'd be stoked.

Going to be used primarily for photo / video editing, drawing in PS (for some reason this is what's destroying my current computer), but not for any gaming.

Thoughts?

Or, alternatively, should I get a desktop for video editing and art stuff and keep the laptop for use in the field?

Thanks!