Tree shopping for lilacs for mom

I was hoping to have a lilac for mom for mother's day, now I am thinking I may need to hold off on that. I priced the trees at Wal Mart (they did not have any lilacs) and they were between $50 and $80 each for common stuff like white birch. We have lots of birch in the yard, tyvm.

So, I need to check out Lowes and Home Depot and see what they have for what price range,. Fred Meyer too, they are usually the most expensive though.