Several have mentioned that at some point, the additional cost of the chamber sealer is offset by the cheaper bags. Here is a quick break-even calculation using numbers that others have posted here.
Assumptions:
Cost of end sealed bags: $0.25
Cost of chamber bags: $0.10
Savings per use: $0.15
I am not sure how much more expensive chamber sealers are. So, I will calculate break-even per $100 difference.
$100/$0.15 = 667 uses.
So, for every $100 difference in price you would need to seal 667 meals to reach break-even. So, if a chamber sealer is actually $500 more than an edge sealer you would need to seal 3,333 meals to break-even. If you seal 100 meals per year, it would take you 33 years to break even.
Of course, this analysis doesn’t take into account any differences in:
- longevity of the machines
- maintenance
- quality of the seal
- time to seal
- ease of use
- storage requirements
- etc.
For non-professional use, I think it is hard to justify the chamber sealer from a financial point of view. However, there are plenty of other, non-quantitative factors that can be used.