He is saying to buy a large cooler and some RH media for it (beads, or KL, etc..).. and then just throw in the boxes.. and you are done..
do a search in this room for cooleridor... several threads that will provide pics, etc.. of what different guys have done... you can build them as fancy or as plain as you like..
If you want an actual cabinet style humidor... you could probably fit 15-20 boxes inside an end table sized cabinet depending on what size sticks youre talking about and how good you are at playing cigar tetris.. but.. be advised.. like most things in life.. with humidors, you get what you pay for... if you have the budget there are all sorts of higher end options from companies like aristocrat, avallo, etc.. that seal well, come with active RH systems and temp control etc...
or you can go as low as $300-$500 for a nice looking unit from cheaphumidors.com or somewhere similar.. that will get the job done.. but wont have all the bells and whistles.. and likely wont seal quite as well...
same thing for larger sizes... you can pay as little as $700 for a tall cabinet.. or as much as $10K.. really just depends on what you are looking for.. and what your budget is...
there is always the DIY option as well.. several of us (myself included) have converted other types of cabinets and boxes.. and made humidors out of them... my cabinet started out life as a gun cabinet.. It can fit roughly 1,000 sticks... all in I think Ive got about $250 invested in it, including the cost of some custom trays I had built by forest..... and.. while it isnt the prettiest thing on the planet.. and leaks about as much as the "tower of power" (pretty common tower humidor sold at a number of different places)... it was a fun project, saved me a ton of money over buying one from someone else.. and seals well enough for me to keep it a steady 65 RH with the active humidifiers I have in there.. with very little maintenance or concern...