Of course I celebrate my birthday. I mean it doesn't have to be on a grand scale costing lots of money, but yes some celebration for me is important. Your birthday signifies the beginning of your life and indeed as we get older another birthday celebration is also about being here; alive to celebrate.
Birthdays don't have to be materialistic or even shared with other people. Your birthday is your own special day and we all deserve one day a year where we should be celebrated for being special.
If I can I like to celebrate with my family over a lunch or BBQ. Last year I spent the morning of my birthday pottering in my garden at home and the afternoon on my balcony sharing cocktails with my partner; listing to music and eating tortilla chips. The sun was shinning, the sea was simmering and I was very happy. Friends called later with a few bottles and the afternoon melted into an evening of chatter and laughter. A very simple day, but a very memorable one.