I agree that 16GB is most probably too little, so maybe the entry-level should be 32GB. I definitely want at least 64G and more, but would find it difficult to justify to pay more than 50eur for the larger memory.
Jolla had it right in their scheme, pay just a little bit more for more memory (maybe just the real mfg. costs difference)
Apple goes the other way and and charges hundreds of euros for the maximum memory which I would not like to support.

About colours; yes, the red one looks candy and is really desirable. If you had bright green as an alternative I'd be really torn between them