MECHANICS HELP Need new scanner

I teach auto mechanics in a high school center. I have been using snap-on scanners for a majority of my career but a few years back we picked up an Autel unit and I rarely touch anything else now. Updates are simple, the data PIDS are better and more plentiful, and there are more functions. All of this for a $2000 tool compared to $8000 counterpart (some are more than that). They have some options that are less expensive if you don’t need all the TPMS software. Their website gives a great breakdown of all the models and their features then you can shop and buy from a lot of different places. Mine is also Bluetooth so there’s no cable in the way, but also easy to leave the connector in the DLC. Just my opinion.
Would agree for the most part with this assessment as both the Autel and the Snap On will be plenty adequate for what your needs are, the part about pricing I don't think is relevant to you since your stated use is for your own cars and so use will be lesser of a high volume shop and so my suggestion would be to buy a clean used unit off eBAY or sometimes the tool truck guys have a trade in but it doesn't sound like you need the latest update and as current as the year will go criteria so save a few bucks and get an older, lightly used version and you will be able to do everything you need to do.