How much was that? Want one bad but all the choices are confusing. Is that the whole unit? Batteries? Plug?
This is just the atomizer part of the equation. You would still need the battery, which is really easy and inexpensive to acquire. You want an "Ego-threaded" battery, or 510 thread, which is the most common one. So anything that is an Ego clone is what you want.
This attachment screws onto the battery. It cost $40 and it comes with the tank assembly, 3 atomizers, and a dab tool. The batteries usually cost somewhere in the $20 range or less, including the charger, for the generic ones.