Having used TopHat in a couple classes circa 2014-2015, the product is pretty bad. It's main use case is, honestly, attendance. Two anecdotes stick out. The university subsidizes the cost down to $5. Through some technical error, TopHat applied a full discount. One month later, they noticed their mistake and retroactively charged each student $5. I think I'm the only one who complained to their support enough to get…
You're right that there are still too many profs who use Top Hat for really basic stuff like polls in class and taking attendance - thankfully that's in the minority these days. Our goal is to get profs to at least take these baby steps to get started and then to swap out their $200 textbook with content on our platform, which would save students a ton of money and create a much better experience in the process. Here…
$60 plus a "subscription," whatever that is.
I can't speak for the quality of the books, but searching "general chemistry" on half.com gives me a bunch of entries in the $5-30 range. They're a few years old, but I can't imagine general chemistry has had many radical changes in the past decade.
These textbooks work with Linux or any other operating system. They can be re-sold, probably for the same price at which they were purchased. There is no learning curve to using a textbook. The textbook's servers will never be down. The university has to pay no licensing fee to the textbook. Textbooks do not have technical glitches. I can read a textbook on the bus, on a plane, in a car, or anywhere, with no worries about running out of batteries or losing my network connection.
Why on Earth would I ever pay more than twice the price for a far worse user experience?