Agreed, learning styles are different for everyone, and it's important to be able to try things out. We've added a 3-day trial for you to experience what it's like — looking forward to seeing you on the leaderboard!
The 3-day trial is only on $700 annual memberships though! I'd very much try this out on a 3-day trial if it's then only $70 a month afterwards. $700 in one go means I have to ask the wife and you'll miss out on a sale there ;)
I think doing the first 2-3 stages of any course is usually a good enough to understand the core for the learning experience. The later stages tend to get more involved (e.g the last stage of Git & SQLite are rather tricky for most).
Good suggestion regarding having trial projects for every language, we'll consider that.