Crazy in the Spring?

I’m contemplating spring races and this is my newest plan:

April 22nd	Yonge Street 10K
May 6th	Goodlife Half Marathon
May 13th	Sporting Life 10K
May 27th	Toronto Women's Half Marathon

I’m already registered for the Yonge Street 10K so that one has been set for a long time.
My original plan was to run the Goodlife Half (which is on my birthday!) then the 5K portion of the May Toronto Women’s Race.
Then I found out that the Sporting Life 10K is offering a $50 gift card for Sporting Life if you register before January 15th. Who can pass up a free gift card?? Plus it will be interesting to compare the two 10K’s since they’re on the same course. So that went onto my list.
But lately I’ve been thinking that I might not be ready for a half marathon at the beginning of May, so I started thinking about Toronto Women’s Half Marathon and adjusted the training plan I had created accordingly.
After adjusting my training plan, my 20Km LSR falls conveniently on May 6th. So if I’m going to run 20Km anyways, why not just run the Goodlife half?
Is this nuts?? Its a lot of race fees but I already paid for the Yonge Street 10K last May. And I have a new pair of shoes stashed away that I bought at the outlets in Vegas last summer so I shouldn’t need any new shoes for a while.
I’m happy to hear any opinions.