If all you want is the ability to make sounds, musically or otherwise, then a pure synth is fine. I look at Arrangers and modern Workstations as creative tools. The Styles, Voices, Performances, Combinations, Arps, etc are endlessly variable and can be combined in a myriad of ways. The permutations of sounds, rhythms, etc are also endless. Plus in most you can add your own samples. Too many look down on these tools as just Romplers that have sounds created by others. They miss the point entirely.
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joesax
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https://music4stressedoutsouls.bandcamp.com/
Tyros 3, Motif XF6, Quad Amp/Pre-Amp/DAC, Quad Monitors, Tascam Digital Recorder