Not for everyone obviously, but I developed a synthesizer habit some years ago, and right now is probably the best time ever for a beginner to get into it. Korg’s Volca series, Roland’s Aira compact, teenage engineering’s Pocket Operators, Arturia’s Microfreak, and Elektron’s Model series are all affordable and a great way for a beginner to start making some cool-ass music. Beware developing a habit though. It only stays affordable so long.