Your initial start up cost is somewhat high yes. This all depends on how you smoke analogs what type how many packs per day, etc. I will give you my example. My pack of analogs used to cost 14 per pack. Though I only smoked 6 pieces per day. I got the Halo G6 kit and bought quite a few clearomizers (little plastic easy refillable bottles) from litecigusa.net for 2.25 a piece. Those bottles in my case can be refilled quite a few times. Many people after it goes bad wash them out and they can reuse them too. I have yet to have one go bad. After the initial cost though it is relatively cheap. Really cheap in my case. Here is a link to the Clearomizer and you can use an adapter (because I am sure your thread is 505 and the clearomizer is a 808) adapter is like 3 bucks. Hope that helps.
Below is what I am talking about:
Kanger 808D-1T4 Clearomizer
Below is what I am talking about:
Kanger 808D-1T4 Clearomizer