Fear not 300hr, since one benefit of being late to the party means that there are plenty of people who you can ask about such things... Being an early adopter means making trial and error mistakes for others to learn from.
The best suggestion I can make is to not buy too cheap a device to start with. There are some very cheap android devices out there, but build quality can vary quite wildly; I know some chaps who went through 3-4 cheap tablets before landing on their ultimate choice, and probably spent much more money in the process... you may consider going straight to the more expensive but more robust iPad to avoid such false economy.
Bear in mind though, that once you choose Apple or Android you will start to accumulate apps that can then (mostly) only be used on your chosen platform, and you will get used to the quirks of your operating system of choice, so it can be hard to make the switch later...