$25 here for a 20# CO2 swap at a welding supply. Aluminum for aluminum. Yeah, I schlepp that tank to serving events too.
One, not so local to me, gas place does 5# refills, usually within the hour. Not sure what they charge now, but many club members from that area seem to be fine with them, and I never heard about price gouging or absurd charges.
Like everyone has posted, the other items seem reasonable.
Motueka is not that unique, but Nelson is always in demand and short on supply, so a pretty average price for an LHBS, yes. But overpriced given suitable alternatives.
7 years ago I stopped buying hops from either of my 2 LHBS' since they only sold by the oz, and after paying well over $20 for 6 oz of IPA hops (Simcoe, Amarillo).
A few years ago, one LHBS started selling hops in 4 and 8 oz packages and some at whole pounds (mostly leaf), but still at staggering prices given online alternatives, such as Farmhouse Brewing, HopsDirect, and as I found later, YVH. I buy mostly by the pound, and my freezer content is testimony to that. CO2 purged and/or vacuum resealed, they last many years, 4-5 years, at least.
Perhaps it may be beneficial for you to plan ahead better.
That's probably the ultimate solution, having time in your favor to select better pricing. Buying in bulk over piecemealing. Keep an eye on shipping as it may kill an otherwise good deal, especially when heavy or large items are involved.
I can remember paying about 35 bucks a piece for 2 simple BSG plastic fermenting buckets (sorry no receipts to post for that).. Needed them that day so I bit the bullet on that one too.
Whaaa! Time to shop elsewhere, as well as planning better ahead.
IIRC, I paid $12.70 each, 5-6 years ago. Plus $3.25 for a drilled lid. I thought
that was highway robbery, as I remember seeing the same buckets for $6.70 a year or so before. Oh well, they can last a lifetime if treated with respect. I picked up quite a few free ones, over time.