I've not done it specifically in a Wallstreet, but I've seen it done in older and newer computers.
Personally, I'm not a big fan of that route. CFs are designed for sequential riding, then sequential reading followed by an erase cycle. They're not really designed for the kind of "thrashing" they get in a computer application. CFs go in my cameras 🙂
BTW, big CF cards aren't cheap. I bought a bunch of 32s and a 64gb when I bought a Nikon D800 back last fall. Even though it's old as technology goes(introduced in 2012) it's still one of the higher resolution cameras available at 36mp. I shoot in RAW+JPEG, and the JPEGs go on a 64gb SD card that rarely is removed from the camera. The CF is my main working card, and it's where I put the RAW files. JPEGs are ~20mb from this camera and RAWs are ~80mb.
In any case, I lucked into a deal from B&H for two Lexar 1066x 32gb cards for $50, and a 64gb Sandisk Extreme IV SD+CF bundle for $100. That was inexpensive.