If I were looking at this with the purpose of saving money without sacrificing quality, I would buy 2 Vision 1300 mAh Spinners $22 ea, $44 + 2 slim Artemas tanks $8 ea, $16 + 2 boxes of 5 Boge f16 cartos $6 ea, $12 (might need a small file for the flanges, but worth it), and 1 USB charger cable / wall adapter / car adapter $5 ea, $15 ... Total hardware cost: $87 will easily get you through 6 months if you keep 1 tank as a spare and take care of your cartos, or you could get 2 clearos and at least 12 heads for the same cost as the tank sets. So again, that comes to $87.00 total hardware cost for a 6-month supply.
For juice you can get 500 ml between 0 and 24 mg nic premixed with PG, VG, or both (usually offered in 50/50%) under $30 + Flavors, choose about 6 to 8 in 10 ml $4 ea, $32 + Ethyl Maltol $4 + MTS Wizard $4 that comes to $70 total e-liquid cost for a 6-month supply.
Now add those together and you are looking at 6-Months of vaping for roughly $157, or $26 per month or $6 a week for the first 6 months. Keep in mind that included all of the hardware as well. Subtract the Spinners, tanks, and charger(s) you are now at your next and every thereafter 6-month cost of only $82, or $14 per month, or about $3.25 a week.
Granted this is not including shipping, but it is not including discount codes or sales either (and you pay for gas to drive for cigs). Plus shipping is usually free after a high enough dollar figure. Also, try to get as much as you can from 1 vendor. Just because you can save a buck or two on one or two items from the next vendor down, make sure you are saving more than the double shipping by using two vs one. Also, out of state means NO taxes out of pocket!!
So my answer to the OP is to answer with a question. Do you or whomever spend more than $3.25 a week on smoking including lighters?
EDIT: Because hardware will need replaced after about 1-year let's look at this as a total of $239.00 per year (157+82), $19.90 per month (239/12), or $4.60 per week (239/52). Hope that helps!!