How much is a BC for diving?
BCD costs will range from the entry level of $350 and go up to almost $1500. The majority will fall in the $500-$700 range. The main differences you will find is the type of materials that are used to build the vest.
How long does a scuba BC last?
If the hose is sound with no signs of cracking, there are no leaks, buoyancy control is good and you service the inflator and dump valves annually after the first five years of use, then you should still have a reliable BCD.
Do you need a BCD to dive?
Sport and technical divers should never consider diving without a BCD that has an air cell. A BCD is just like any other ‘tool for the job’ in that you should pick the right BCD for the dive you are planning.