Ah, I forgot about toshiba/OCZ. Didn't know about WD. But I would think for brand recognition, WD, Toshiba and Seagate would have their names on their products. WD, for example owns HGST for corp/enterprise market.
My bigger issue with TLC drives (great marketing name, eh) is the performance. Of course OEMs will LOVE it as they'll sell computers with such drives and get an excellent markup on low-end drives. When I ordered Thinkpads from Lenovo, I would get them with the smalled HDs, and install intel drives. Why? Because the ONLY info you got was "100GB SSD" - not a brand or model or series or anything. Why spend $300 premium on an unknown when I could spend $240 and know what I am getting? Plus use the HHD unit as a back-up drive after its been cloned.
The typical custom won't know they have a low-end product. Going DRAMless to save a buck seems kind of stupid... but for some markets, a $1 is like $20 to us.
The life-span of the drives are not that big of a deal (for consumers and Small biz) compared to servers and enterprise. I was checking out a review comparing stress test of recent MLC and TLC drives to stress with the goal of hitting PB (1000TB of writes and beyond before failure). They all survived 700TB of writes, some hit 1000TB, including TLC. Those that died, gave SMART warning.
I checked my status on my intel 520 series 120GB drive from 2012 (My C: drive) and over the past 4 years of daily use, it only racked up 14.28TB writes! I typically run two broswers with 3 windows with about 50 tabs in use, photoshop and other tools. My SSD isn't close to death. Geez. my ancient intel X25-M 80GB (2009 tech) in my 2004 Thinkpad used to be my desktop drive, it has logged 7.54TB of writes... still works fine.