Gotta agree on the cost factor. Throwing more money at a razor won't guarantee a better shave. I just received a new razor head from WCS - Lithe, designed by Charcoal goods. The head will allow you a shortcut to developing your proper head angle technique.You'll get a ton of responses to this question. I'll just offer a warning as someone who started with a DE89 but wanted something "better"--the DE89 is an excellent razor that will give you comfortable shaves day in and day out. It's fun to try everything, but my experience is that a $300 razor and a $20 razor can give you the same results if you spend time perfecting your technique with either.
Have fun going down the rabbit hole and good luck finding your holy grail razor! And since you asked, if I had to give up all my razors but one, I'd keep my Razorock Mamba 70 so I guess that's my suggestion--I think it was about $60. But I'll add that of my 40 to 50 razors, the DE89 would still make my top 10.
WCS Lithe Safety Razor Head Designed by Charcoal Goods
WCS Lithe Safety Razor Head Designed by Charcoal Goods- Available today from $18.00
www.westcoastshaving.com
It was on sale, shipping is free (for now) and I've already got several different handles to put it on.
Today was my 2nd shave with it & I got a smooth, close, easy and non irritating honest 12 hour shave with it. Easily a $50 razor performance if you want to stick a performance pricetag on it. Of course, I'm also happy with the RazoRock Teck II shave quality - and it's a simple task to replace that ugly handle with something else.
If you don't need a prestigious or pretentious name brand label for your razor, get one of these. If you DO need a glitzy nametag, you can still buy one of any of the well made & expensive stainless handles for it.