I recently ran into a friend who is planning on leaving their job, and although they currently have an iPad provided by their school, they are planning on buying their own so that they can take it with them to their next school.
I realize that many teachers will not be able to afford their own iPad, and that there are educators that feel that if technology is used at a school, it should be provided by the school. Most business workers would be amazed to learn that teachers generally have to buy their own technology if they want to use new technology in the classroom. Keep in mind that businesses provide devices to workers, generally, on a 4 to 1 ratio. Schools generally are able to provide technology for teachers at a 1 to 1 ratio, and to students at a 1 to 4 ratio (and those computers can be more than 10 years old). I know of one school district in our area that provided an iPad for every freshman, but did not provide any iPads to teachers.
It is possible, however, as we approach 2017, that schools will provide an iPad to each teacher. My advice: if you can, still buy your own. The school may put limits or restrictions on the apps you can purchase, and you don’t want to buy any apps out of your own income that are attached to a school account. In the event that you have to leave your position, those apps will remain connected to your school account (most schools will not want you to use a personal account). Furthermore, it is entirely possible that your IT staff will erase your iPad every summer, wiping it clean for the fall. If you own your own iPad, that won’t happen. And although an iPad can handle multiple e-mail accounts, it is probably best not to have personal e-mail, Facebook, or the like on a school-provided iPad.
One added benefit is that two iPads can work together. To my knowledge, unrealBook is the only PDF Music Reader that will allow you to link two iPads together with Bluetooth so that you can follow two pages of a score at one time. Just make sure that the same music and playlists are loaded on both iPads, and follow the directions found in the user manual of unrealBook.