Why would they put the B16 in a DC? Because they wanted the motor for their ef/eg/ek/crx swap... They may have gotten a good deal on the car, bought it and swapped the motors, and then turned around and sold it. Some people prefer a civic over an Integra because of how light they are, or perhaps they just like the way they look better.
I personally miss my teg, but it's more cost effective for me to swap the GSR motor into the DX I got cheap and sell all of the parts left over then to buy another teg
