I don’t think your information is quite right here. A nice (nice as in kind of the best that I’m aware of) pod style vape is about $30. A bigger box mod is under $60 for the ones I like from Vaporesso or Voopoo. Juice is let’s say liberally, $40/mo (120ml). I have been handing down vape mods for almost a dozen years. My buddy vapes a lot and he’s been using my hand-me-down vape for two years and it was 5 years old when I gave it to him. I only buy new because they get a little worn and I like the shiny screen and buttons. Absolutely all still usable. Best I can tell, disposables are about $10 for 3-4 days (according my partner who is annoyingly using disposables for “convenience”). You can get a nice mod and juice every month for the price of disposables from the real world numbers I’m seeing.
I’ve been doing the same. Koolada and extra sweetener are just the bane of my existence. I wonder if there’s an e-juice community on Lemmy… I should check.