Hm, yeah, I'm not all that comfortable with OneBlade's marketing tone overall. As I've said elsewhere, it's all too "finance bro" for me, which is not my thing, to say the least. It's clear they're going after that executive or aspiring executive type, which is a valid market for sure, and certainly makes sense as one which would consider a $300 razor.
That said, I can't deny how well the OneBlade shaves. Nor how appealing the design is, nor how clearly well-built it appears to be (I keep that contingent, as none of us have had one for decades yet). Any claim of being "the best" of anything is always open to debate, but the razor has the merits to make a good case for itself in that category. It shaves efficiently and closely, it does so with a single sharp blade and all the skin-friendliness that comes with that, and then accomplishes all this without irritation or nicks. By some folks' definition of what a razor should do, it certainly exceeds in all categories.
And yet, like everything, it has drawbacks. The initial cost is the obvious one. Somewhat obscure blades are another, though I'd say a minor drawback (these blades look a bit expensive to wet shavers, but are still a bargain compared to cartridges). It still wants traditional prep — brush and lather — which some guys just won't invest time to perform. And finally, for us current wet shavers, the OneBlade lacks the nostalgia, simplicity, and soul of a traditional razor design, and does not require particular skill, mastery of which with other razors is its own satisfying reward.
Of course, I can list drawbacks for any razor I have. As a gay man in San Francisco in 2016, I can even list the strange social drawbacks of being clean-shaven at all!
Anyway, despite how well the OneBlade shaves — and it really does a remarkably good job matching effectiveness to non-injury — there are any number of reasons someone wouldn't want one. But as we consider the price and marketing approach, we should keep in mind that we hobbyists aren't OneBlade's primary market. What's more interesting to me is to see how non-hobbyists respond to the OneBlade proposal, both its normal price and these promotions.