Is it worth it taking flying lessons even though I can't commit to regular lessons right now? I can’t commit to flying on a regular basis right now. I’m close to a Class B airport with a flight school. There’s a C150 for 100/hr and a Zlin 242 for 160/hr. Instruction is 50/hr. There is, surprisingly, only one cheaper option nearby, and the price difference is small, so the closer option of the two is better. I’ve been studying the AFH, PHAK, and FAR/AIM, so I know my stuff. I’ve not yet taken ground school. I can’t commit to flying regularly right now. Is it still worth taking some lessons? I’d like to solo on my 16th birthday, so accruing hours is important. Should I wait until school is out and I can fly more regularly, or should I just go for it?
My humble advice is to take a single introductory flight in the Cessna 150 to galvanize your interest and increase your motivation. Go to ground school first and then (preferably) start your flight training (in the C150) in earnest once you have the time and money available to take lessons on a regular schedule (once a week minimum, three times a week maximum [until the later stages of your initial training -when you are practicing what you have learned and not learning new skills]).
In my experience, having too big of a gap between flight lessons can be counter-productive and make for a (sometimes) difficult learning curve.  This can lead to frustration on your part and, perhaps, result in your enthusiasm being diminished.
Frequent lessons will most quickly enhance your skills and your proficiency will improve steadily.  Additionally, recency of flight experience will provide for greater personal enjoyment and reinforce your confidence, a very important factor in learning to fly.