Buda isn't really that close to Dallas. It's 15 miles south of Austin, but it's doable. I'm probably going to Buda again this year. It's a lot of fun! There used to be another group that had wiener dog races closer to Dallas but I can't remember where.

Edit: Okay, I just found it. There used to be wiener dog races in Addison. It appears that one happened in the fall around Sept. I've never been but one of our past members went and had a great time.