I like the soft whippet collar, that is pretty. I am not a fan of leather dog stuff even though I'm a horse person. Go figure. lol
Funny you made a collar post today, I just got done taking pictures of some of my collars to show my harness maker.
Around here everyone has around 3 collars. I try not to splurge at all on collars, but when I find a great maker and designs that work for me I do spend a little. But I have wheeled and dealed to keep it reasonable.
I have plain flat web buckle collars, like the ones you get at the pet store. I think they're made by Coastal? Those are for daily training sessions and agility/rally trials. Then we have very decorative nylon buckle collars for most traveling, daily walks, and public appearances. These keep the dog tags on them. I managed to find what I wanted for everyone, and love the quality. They are by Wiggles Wags, & Whiskers. http://www.wiggleswagswhiskers.com/ Then I also have the decorative nylon safety chokes from Nick Russell, a fellow Basenji owner. His website doesn't work anymore, but I think he can still be contacted at email@example.com. Nice quality and very reasonable prices. These are my other travel/public collars for when I don't want jingly tags or need the extra support of a choke. I don't usually have problems with dogs slipping collars so I have used the buckle collars more and more these days as they're easier to put on/off. I rarely ever leave a collar on a dog.
I do like the decorative wide sighthound martingales that I see a lot, but have never used any. They're often out of my price range or I don't like the trims they use. I am picky with collars.