That's an interesting view - most people who hone their razors will tell you outright the problems with any particular razor even before you ask (or I hope they would). My understanding is that Dovo are fairly consistent (although I've only seen 5 or so and one was vintage) so they would be a good choice. I personally will spend the exta $20 to get the dovo special over the intro model - it is different razor and a better one at that.
Getting a prehoned wapi from a member is a good choice. While these sell for less than $20 new the quality control is rather spotty, so even if it's NOS there is a bigger chance that the blade will have serious problems than buying a 'used' razor. Of course, it's all your choice - the only thing cheaper than the wapienica is the double arrow - I believe randy purchased a bunch recently and can probably tell you about their quality.