Sort if.
Yes, without the nicotine, you won't be reviving your old addiction. Plus the flavors are quite yummy, and it's an enjoyable activity even when I don't feel a craving for nicotine.
However, it would be ENTIRELY too easy to get a juice that had nicotine mixed up with one that didn't. You don't even need to make the mistake, and probably wouldn't be able to tell if a vendor or manufacturer had an 'oops'. Trying out a new flavor that sounds tasty, you order a sample of it in Zero nicotine concentration. The vendor buys in bulk and bottles themselves, so they make their own labels. Accidentally filling from the 12mg supply, they fill and mark your bottle zero nicotine... At 12 ml, you're not likely to notice a nic buzz, but you'll start to feel cravings again almost instantly (which never goes away after quitting).
I'm not saying -don't do it-. I'm saying be thoughtful about possible unintended consequences... If this is a risk level you're ok accepting, then welcome aboard!
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Also - it's not 'water vapor'. It's propelyne glycol vapor and/or vegeteble glycerine vapor. Thus far, the limited research suggests it's harmless to vape, but there does need to be a great deal of more evidence before such a statement could be made conclusively.