I watched bud's/Vape Critic's long-form comparison of the Plenty and Volcano which helped solidify that I really wanted a Volcano first and then maybe a Plenty later. It seems like the Plenty requires... plenty.... of actual herb while the volcano seemed to be a more efficient use, being able to get multiple bags out of a packed chamber.
yeah that's my main problem.
some people says that 0,2 gram with the liquid pad on top are enough for a good session with the plenty, but a lot of people says that a full load is required for the full plenty experience.
i already used a volcano in amsterdam with exceptionl results but i only used with a very packed bowl of good weed, i don't know how well it can perform with shitty weed or microdosing when i have the good but pricey weed available.
also i like both long and short session and overall the volcano seems better at handling both.
also the ballons are not wired to a wall so they work like giant vapor joint in a way.
but plenty is 150+ euros cheaper...
fudge me, it's so hard to make a decision...
About your problem, i don't know how pricey is the shipping for US, but in europe you can buy a volcano classic for 329 dollars with a discount code, ask me more details if you are interested.