Much more profitable for you yes, but its not a good deal for the customer.
If the customer is happy to pay then everyone's happy.
There are many, many cases I've seen where customers have been suspicious because they see something as 'too cheap'.
He's aiming at people who don't already have a website - if they don't have a website at this point in time then they probably don't need one at all.
The world isn't static; people create new businesses and projects (and thus need websites for them) every day.
£25 an hour seems expensive to me, for doing tasks that an average teenager could cope with. £25 to someone to work on a 'real' site is no big deal - I think anyone is going to struggle to charge £25 an hour to someone who doesn't even have a website today...
I'm going to ignore this bit since I talked about monthly pricing and didn't say anything about charging £25/hour for site maintenance.
I still think £25 a month for hosting/maintaining it is too much for this target market. If people only have a static site but done in WP for ease of use then there would be no reason to have comments activated at all. And Krystal.co.uk will host a site for £30 a year. They would be overpaying by hundreds of pounds if they gave you £25/month.
And I could probably find a cake makers' forum that says charging £400 for a cake is too much when I could buy/make my own for ~£20 + my time. But people still buy them, and expect to pay that for wedding cakes.
You buy this kind of service because you don't have the time to think about doing it yourself or you don't know how. It seems easy to us because it's our industry, just like performing laser eye surgery seems easy to surgeons. When you talk to small business owners who don't know what a domain name is and are busy working every hour possible because they're self-employed and dealing with suppliers, manufacturers, customers, physical premises, print work, marketing, book keeping, accountants, tax, networking, contacts etc. etc., the last thing they want to do at the end of the day is go home and sit in front of a computer researching how many security releases a content management system had last year. Especially when they don't know what a content management system is.
Similarly, I could grow my own fruit and vegetables at home, but I don't even though I know how. I'm not interested and I don't want to go home at the end of the day and spend time messing about with soil and water and fertilisers and digging up potatoes. I'd prefer to go to a supermarket and overpay for the convenience. I'm perfectly aware I'm getting ripped off, but I don't think twice about it.
That's why Tesco Express charges more for exactly the same products as Tesco Extra. That's why train coffee prices and cinema snack prices are insane. That's why you pay more for a meal at a restaurant and a drink in a pub. Is the customer getting a good deal? Of course not. But it still works as a business model.
If C) and overcharging people because you suspect they can't be bothered looking into the fact you're offering them a crap deal is your business plan, then I wouldn't expect to get very far with this.
Clearly you've not heard of a company called Apple.