Expenses have definitely gone up....
Not just for people who are seriously "doing stuff" with their dogs, but also people who want to provide a decide good life to their dogs with good food, regular supply of chews, etc...
The kibble I feed my guys is about $60-70 per bag per month (for 3 dogs). Go back 10+ years ago, I used to spend $28 per 18# bag of holistic (ie expensive) food with the 30# equivalent just $10 more!!!!!!! Compare that to $60-70.
Even my sister who is buying economy quality food (and I'm shutting my mouth because she and her hub can't afford $60-70 bags of food TWICE a month for their giant breed dog) spends $45 per bag of food.
Puppy classes ages ago when I first started out way back as a 10 year old were betweeen $25 and $50 for 12 classes. I AM NOT KIDDING! Same equivalent classes are now $150 per 6 classes!
Switching gears back to active homes "doing stuff" with dogs.... entry fees for dog shows have gone up at least $10 that I've been keeping track. Majors are also very scarce for dog shows thanks to AKC not paying attention to participation levels going way down in what used to be huge shows. What that means is people seeking majors for their dogs are entering 5-10 shows per 6 months or so that will not make majors (meaning, they can't show their dogs who only need a major). That's literally the equivalent of taking money out of your pocket and ripping it up. Even MORE money if you make a trip for a dog show that HAD majors before you left home, but had them break the day of so you couldn't show your dog!!

!
I'll add, I kinda buckled my lip and smirked when people I knew purchased an RV for dog shows. This meant upgrading their truck as well to haul that RV and it just seemed hugely expensive and who likes camping?!
Then I found out how much it costs to stay at a hotel with multiple dogs! Add to that the concern about staying at a hotel which has weight and # limits for dogs. <= Those get waived for dog shows because the hotels see the dollar signs dancing before their eyes.
Last dog show I did, I spent $150 on my hotel reservation for 3 days? That's not that bad, right? I spent almost $300 on pet fees for 3 dogs. I'm tight fisted when it comes to spending too much on hotels so that about killed me - and definitely has me and my sister cutting back on travel this year because I'm not leaving any dogs home along.....
Additionally - I'm not that happy about competition classes going from $60 per 6 classes.... to $110 per 6 classes. It means I went from doing 3-4 sessions per year to maybe doing 1 session all of last year.
Vet bills went from going to our vet for ANY REASON and if he saw us for less than 5 minutes, he didn't charge us or he charged $24 per standard visit... to us paying anywhere between $45 (standard vet exam/visit fee) to $95 (if we need a same day appointment and scheduled after 2PM). <= And I'm aware these prices are cheap compared to other areas around the country, but they are still steep rises in states like Michigan where costs have risen more sharply than income.
I could keep ranting forever... but long schpeel short, I both understand why breeders are raising puppy prices and cringing because I see a point where somebody like me could not possibly afford a golden retriever.

I already see other people dropping out of the breed because of the combination of the cost of a puppy and the increased health issues of the breed.