[thxbb12]

I did so, too, especially when I was stupid or hasty enough to buy a new camera with unsupported RAW, which is a fashion for all manufacturers.

But it's cumbersome for me: When deleting files, it's not so easy to synchronize the other type. Also, I need even more diskspace because I tend to adjust some photos rather quickly, but I develop them only if needed.

What I usually do is put the memory card in the computer and browse all images to cull most of them. I use geeqie viewer (might be linux only - not sure) which is very fast. When I delete a photo it deletes both the JPG and the RAW. I only keep the "keepers" (for instance I try to only keep a single or a couple of shots in a given sequence). Then, I import what's left in the RAW converter. This way, I don't end up with tons of images and disk space is mitigated.

Plus, storage is very cheap these days. You can get 16TB of RAID6 for less than $1500 (e.g. NAS with 4 HDD of 8TB each).