I'm a bit of acarrier addict but my stash is still small. When DD was a newbie I used a Hug-A-Bub which I got for $60 on ebay. Loved it!
Now I have:
Two woven wraps:- 1) size 6 100% cotton Vatanai $135, cooler for summer, easy to break in and is big enough to do most carries. Takes practice to wrap but is the best for weight distribution imo.
2) size 5 hemp/cotton blend Natibaby $150. Not as much fabric to work with and is stronger for when she is bigger.
A $100 mei tai which is great for quicker up and down and easier to get bub on back. Also has a sleep hood that can be pulled up to support bubs head when sleeping. Can get a bit hot
Two ring slings:- 1) a Breeze Baby mesh sling, $55, great for water and the beach. Very cool.
2) a 100% silk Sakura Bloom, $60. The ring slings only get use for quick things like hanging washing as they tend to pull on my neck but they are great for that!
I buy second hand most of the time cause its either cheaper or at least a little broken in. I have yet to experience anything with buckles.