I guess it depends on your perspective. Apple products certainly aren't priced for the poor, but they do certainly have products that are affordable if you wait for sales or buy used. Best Buy currently has an iPhone 7 for $349 with 24 month carrier financing or $14.54 a month installments. I think most middle-class people can afford that.
Now not everyone will be able to afford the $1000 iPhone, but they still make the SE for the more budget conscious and the SE is still a great phone. They don't make anything like the sub-$100 Android phones, but Apple phones last a long time if you take care of it properly. You can get 3-4 years out on an Apple phone easy while in my opinion you kind of max out at 2 years for most Androids. My sister seems to have to buy a new Galaxy every year since they always seem to die on her. Although, in fairness to Samsung, she does drop her phone an awful lot.
I also think it's a little unfair that people are using the projected MSRP of the future flagship iPhone as the benchmark price for all iPhones. The 64 GB Samsung Galaxy Note 8 is $930 and it could easily go over $1000 if you want more than 64GBs. Not everyone buys the flagship and not everyone pays MSRP for the privilege of having it on day 1.
The iPad line is in the affordable range if you wait for sales, but they're still not near the price of the Androids or Windows tablets. I picked up a 2017 iPad for $300 when it was on sale. While not cheap, I don't think it's completely out of reach. Especially when you consider how much longer it's going to last compared to one of those cheap Androids. Sure, you can pick up a tablet for $100 all day, but they're not very good.
Yes, Apple makes tablets that are well above the $1000 mark, but I don't think most people need that kind of power in a tablet. To me tablets are just consumption devices and the $300 one is plenty fast for Facebook, e-mail, Netflix, etc. I see it more as a giant iPhone more so than anything.
The Watch is more of a fashion accessory since you don't really need a watch to tell time anymore now that everyone has a phone.
I think Apple's weakest point where affordablity is concerned are the Macs. $1000 is a lot for a laptop, but I don't see them ever going lower because they don't make low end laptops. The $500 Mac mini is really a perfect entry point if they'd keep it updated. I know some teachers who swear by them and have had their minis for 5+ years. The iMac is pretty pricey, but you really are getting what you pay for. The price of a 4K or 5K monitor on its own is pretty significant, although they have gone down quite a bit. Apple also offers up to 24 month financing on their Macs.
The Mac Pro and iMac Pro are not really a consumer grade PCs, but they're not too off in price for being workstations. The Mac Pro is horribly outdated, but the components are still expensive. Xenons don't really go down in price that much over time.
Apple doesn't sell low end products. They sell mid-range and high-end products and there's nothing wrong with that. You can buy a sub-$200 HP laptop, a $5,000 Alienware gaming PC or a $25,000 HP Workstation. You can also buy a $300 iPad, a $500 Mac mini or well over $5000 on an iMac Pro or $1229 for a 512 GB 12.9in iPad Pro with LTE.
Also since Apple products do last for a very long time there's a strong secondary market. Some people buy used and there's nothing wrong with that.
Apple may not have the same kind of range as their competitors, but they do sell quality mid-range products along with their high-end devices. The Apple-tax is a thing, but it's up to each individual consumer if it's worth the cost.