Macbook Air configurations - is going fully loaded worth it?

So after 2 years of saving I've decided to pull the trigger on a new Air. With my Student Discount I can get the maxed out 13 inch for £1358 compared with £1579 on the normal store. I'm upgrading the RAM to 8GB regardless but are the i7 processor and extra 256 GB of storage necessary?

I would describe myself as a pretty average user; I dabble with some basic video/photo stuff but nothing professional. The main concern is future-proofing; hopefully this will last for 4, maybe even 5 years.