For the vast majority of cameras, you're really not dealing with the sensor. It's safely tucked under the low-pass filter, which is what you are going to be cleaning.
I don't know why a Rocket Blower would be any less desirable than a small vac.... both are simply using the movement of air to (hopefully) dislodge the debris. it's just a matter of the direction the air is flowing.
I hate when people ask me what I see myself doing in 5 years...... I don't have 2020 vision!