I personally think second hand is better. For all of the reasons everyone has already said an about it lasting longer, used tack can actually last longer. When buying used, you can pay a little less for something that someone (with a far higher income lol) has bought. And typically, especially with saddles, more money= better quality. For example: I bought my dressage saddle used for only $150. Its a Passier so I know it is a great saddle, and new I could never afford it (And to be honest I don't ever see myself spending $6500 on a saddle, my saddles retail value.) Yet it has a few dings but the tree is strong and its all nice and soft, supple, and cozy.
And I have bought a new saddle before... they can really be a pain in the butt, literally. And no it wasn't cheap.
And many people, at least around here, will get a new saddle every other show season. They then sell their "old" saddle for half the price, even though they only rode in it a few times! So there's LOTS of saddles etc out there :)
Have fun getting "new" stuff!!! :)
"Don't turn you disabilities into a crutch, turn them into legs and run with them"