Great value for money- I have one and love it, really does prolong your produce.
Normally they sting you with a cheap cost of entry, but get you with $$$ for additional bags/containers, but the containers are also going cheap.
2pc Containers- $32
https://www.harveynorman.com.au/foodsaverr-fresh-container-2…
Bags- $21
https://www.harveynorman.com.au/foodsaver-35-pack-950ml-zipp…
Why would you want to lock yourself into a proprietary expensive system?