Although I find shellmoundal's posting lacking a little tact I can see why he might be labeling you the way he is.
You are focusing on reaching 4 stages of training and 100 dives. This seems to be focusing on the minimums. As a cave diver you should not be focusing on the minimum requirements because REALLY the minimum requirements are different for each person. Cave instructors have no qualms about not certifying you. You could pay $1000 for a course only to have the instructor tell you you failed and you are not getting your money back. It is like most other educational endeavors. When you go to university and get a degree there is no guarantee you will graduate. Who the university graduates helps determine the quality of the degree. The same applies to cave instructors. How good their students are is a direct reflection on their ability as an instructor. There are hundreds of OW instructors. Some totally suck but they will still be able to find someone to take their class. I have been diving with people
Doppler trained. Because of how good they are, I'd hire Doppler in a heartbeat.
I might take a course with someone like Doppler and he would probably help me figure out what MY minimums are. I could easily end up spending $20,000 to get cave certified. Getting certified isn't just about the training it is about what happens between training. For example, I started diving in the Caribbean. When I went to get my AOW in Canada it was with someone who was OW certified in Hawaii on vacation. They weren't at all serious enough about getting certified in Canada. The instructor assumed we were both 'vacation' divers. After our first two dives he went over our log books. When he noted that all my dives after training had notes about what worked, what didn't, the skills I practiced, the different conditions I dive in, etc. I keep my log book for me. I put in notes about the things I learn about myself as a diver. The few cave divers I know are the same way but worse.
If you are doing 100 dives in 5 years then you are averaging 20 dives a year. I do 20 dives a month. I live in a hotel in Dallas at the moment. I bought my own tanks because it will be cheaper than renting. I don't even thing twice about how much money I need to spend on diving. I try to find the most economical way to do things but not diving is not an option. I'm not a cave diver. Not even close.
If you are from Florida then you are probably diving 12 months out of the year. A cave diver will definitely use a drysuit if they need one to dive all year round. I know a few guys who are cave certified in Ontario. They fly to florida all the time so they can keep up their skills. The price of $8,000 is USD and it assumes you life in a area amendable to diving. You are in Sudbury, ON. Can you afford to dive year round? Fly to Florida or some where the cave instructors work? Can you afford the time as well as the money? I lived in Toronto and considered getting cave training. I couldn't afford the time when I was working 9 to 5 in Toronto. Even with 6 weeks vacation it wasn't in the cards.
So talk to some people. Find out what it takes to be an avid diver (that will require a certain level of time and money). After that you want to start talking to technical and cave instructors. There are a few on here. By the time you are an avid diver, knowing who has a good reputation and who is not worth what they are charging will be a lot easier.
The most important thing you'll learn over the next few years is how little you actually know.