If you like the Tadafusa, you should check out Tokyo A-Frames. It looks like he's selling off the rest of his Tadafusa pieces at the lowest prices I've found ( that same 210 gyuto is around $80 USD). I'm considering buying that one myself. Do note that it's not a very "tall" blade if that matters to you, it's a bit like a giant petty. Also keep in mind that while the cladding is stainless, the core is blue #2, which is a carbon steel that will rust at the thin line of exposed core if you don't take care of it. For me that's a selling point, because blue #2 is a fantastic steel, but you mentioned earlier that you were shooting for low maintenance.
Also, if it's a santoku that you really want, you shouldn't feel like it's a lesser knife, it's all about personal preference like others have mentioned. BTW the Tadafusa stainless clad pear finished blue #2 santoku from the same line as the gyuto you mentioned is available on Ebay right now for $65. That's a heck of a knife for the money if you don't mind taking care of it.
Lastly, I have the Tojiro DP santoku and I flat out love it. I don't have anywhere near the experience of many of the posters here, but for me, the DP santoku is nice and thin behind the edge, it's easy to sharpen, and it takes a truly wicked edge that lasts a good long while. A knife is only as good as the person who sharpened it, and the Tojiro will be a better knife than you are a sharpener for many months. When you feel like you've mastered sharpening it, you'll find that the Shigefusa's and Geshin's are still there waiting for you, only now you'll be able to fully appreciate and care for them. Lots of folks go that route and there is no shame in it.
Case in point, I've had a $1,500 tamahagane western Iwasaki straight razor made by Shigeyoshi Iwasaki for almost 15 years; I've never even sharpened let alone used it out of raw fear. It sits in a box. My Tojiro DP has been 10x more useful for me; these knives are tools after all!
At the end of the day though, all the knives I've seen mentioned in this thread will serve you well; pick one, enjoy it, and don't look back until it feels like an old friend that feels as comfortable on the stones as it does on the board. That's my 2cents anyway. Good luck!