Kindle memory size with Audible.

[MrPanks]

I'd like to upgrade my Kindle, and I've also signed up to Audible so I'd like to store my audio books on it also. Will an 8GB memory do or should I upgrade to 32GB? I've got a paperwhite from 2014 that just has books on it, and it's nowhere near full so I don't know if I'd make use of the 32GB, but obviously don't want to regret it if I'd need increased memory for audio books. Any advice?

I have around 50 audio books on my iPhone audible app + a couple hundred written books and it takes up 20gb.

If you just had audiobooks I'd expect to get 25-30 on 8Gb.

Thanks, maybe I had better go for the bigger memory then.