When you're first starting off, I mean I haven't been using this program for that long its cool without MIDI to just learn how the program works and all. But, in the end you're going to be wanting MIDI on your tracks it just makes it that much better giving you more control. You could always get a virtual midi keyboard to start. If so check out
Bome's mouse keyboard. In the end though you'll want an actual keyboard I think its worth it. Once you really start to dive into reason and programs like it I'm pretty sure you will to.
So yes, if you want to make some sick beats, definitely try with MIDI support its worth it.
_SG_