Thats a good point Oli.
Good equipment is important, but finding good vapes in the early stages pretty well sets up the path of interest and persistence.
I bought some absolutely crap nicotine liquids which took about 4 or 5 weeks to arrive, in the meantime I was vaping some quite nice non-nic liquids. Whilst I wasn't getting the nicotine hits I needed at that stage, I did find some pleasant flavours which I was then able to order from the US with nicotine in them.
For those who don't understand what I just said, in Australia we can't buy nicotine liquids from Australian suppliers, but they do however sell liquids made in the USA which are nicotine free. This gives us the opportunity to test those flavours and either buy them direct from the US supplier, or alternatively mix an unflavoured nicotine (which we also have to buy from overseas) with the liquids in Australia which can be bought as 'doublers'.
However, because we can't easily purchase liquids, one could easily be discouraged from persisting.