Prepaid: $150/yr plus 69.99 shipping (breaks down to 12.50/mo and 5.83 shipping)
Edit: if I'm reading this right, it's not a bad deal at all considering you seem to get a breadboard + all parts every month in addition to the circuit. So if you do it, you'll end up with whatever knowledge you accumulated from doing the 21ish circuits per month, plus a TON of parts.
Payment via PayPal or Bitcoin.
Regular: $14/mo plus 5.99 shipping
Prepaid: $150/yr plus 69.99 shipping (breaks down to 12.50/mo and 5.83 shipping)
Edit: if I'm reading this right, it's not a bad deal at all considering you seem to get a breadboard + all parts every month in addition to the circuit. So if you do it, you'll end up with whatever knowledge you accumulated from doing the 21ish circuits per month, plus a TON of parts.