This actually sounds good! Whenever I met professors like this, I'd look forward to his/her lectures. Most of the time, they have good confidence, experience, and mastery of the subject and can pull off very systematic lectures and discussions. I would perhaps try to see this as a very positive sign and start appreciate the professor.
As for "trick" to get students to attend. What most of us merely want is to have our teaching done in an effective manner (though "effectiveness" can be subjective, and would need to be optimized to fulfill both students and professor. But the professor is the driving force of the teaching process, as a student I'd respect the decision.) If coming to class is the most effective, then we'll make students come to class. There is no trick, for we don't get paid by how many show up in the class. We just want to see you and address your questions.
Think another way, this is a person who would rather deal with more potential questions and varied reactions in class than stuffing you a text and ask you to survive yourself. It's likely a good sign. (Or, he/she may have copied the whole text into the lecture and read each slide out loud, though I tend to think most people are good first.)
As for the text-deprived, they can always get their own text. The syllabus should have provided enough headlines for you to match with the book's contents page, allowing you to make an informed decision when buying or borrowing textbooks. Also, a search for syllabus with similar course title will also get you ample amounts of sample syllabi, most of which probably did suggest a text.
Additionally, just because there isn't an assigned textbook doesn't mean the professor will not recommend any reference book. Perhaps later into the semester you can ask if there are any desktop references or web resources he/she will recommend.
Lastly, some personal experience: good textbooks come by more often due to chance than effort. Sometimes the authors may use different terminology, have different inclusion or organization of the topics, use different software so the examples don't apply to the students, or everything is good but they haven't updated the book for 10+ years, etc. Sometimes there is just not a suitable text.