I'd love to get a sujihiki but I don't eat meat or poultry, so I'm wondering how I could justify getting one. Anything a suji can do better than a gyuto other than slice protein? I do eat fish/seafood so I suppose there would be the occasional smoked salmon to slice.
I didn't know that something like "vegetarian sujihiki" existed , maybe it is something like a "manbearpig"! If you need a long slicer different than salmon-ham slicer or don't like the single beveled yanagiba then you buy a sujihiki , other than that i wouldn't be able to justify buying a sujihiki just for vegetables and occasionaly for slicng smoked salmon. If you only intend to use it for smoked salmon you are better of buying a stamped ,cheap, more flexible slicer knife.
Altough i have a yanagiba and a dedicated slicer i have bought a sujihiki too , because i am using it as a fillet knife for large cuts of meats.But if you fancy one , just go for it , i am sure you can create uses for it even it is not a replacemnet for a Gyuto