You can subscribe monthly and have full access to ALL the Adobe products, including Illustrator.
Unless you have an especially good reason that you must use Illustrator, a very good alternative is the FREE software program called InkScape. It will do pretty much the same tasks as Illustrator or CorelDRAW.
For everyday vector drawing, I find the Vectric drawing tools more than adequate. I seldom use my Illustrator or CorelDRAW for vector drawing anymore.
-ShopBot Buddy PRSAlpha CNC