It's a couple of weeks without a mist system when I could have spent it on something else.

I'm saving up what money I don't use for vet visits ( I keep about 30$ a month just in case, sometimes less ) for just in case visits. Once I get a couple hundred saved up (probably 400$) I will have to get this for sure, so just in case right after wards I need an emergency vet visit, I will still have some money.