Making Money Selling Wordpress Websites?

Hi, so I've been designing/coding websites for a few years now, and have noticed that most people are generally pretty ignorant concerning what makes a website good. Most people that I designed for usually just associated looks with function. If it looked good, they thought a lot of work must have been put into it. so the question is, does anyone on here purchase wordpress templates, customize them a bit, and them turn them around for profit? How did you find clients? My clients always paid by cash, how do I set something up like an automated monthly payment system for updating/maintaining the wordpress websites? Do you charge extra for SEO services? How much do you usually charge for a 3+ page website? I'm in school right now and need a new source of income, so I was wondering if any of this would work out.Thanks!

I do not know how to make a monthly payment system for updating maintaining it but I can assure you that you will find it on google.
For SEO services yes you charge more.
For prices, check other webdesigners arround

For sure it will work for an extra income.
P.S: I am a newbie web developer and already have income from it from customers in my local city.

You could easily setup subscriptions directly through Paypal and even generate the initial invoice there as well. When you're ready to show off your portfolio, then you could use any of the eCommerce platforms available for Wordpress to allow for client checkout directly on your site.

I use themeforest themes as a basis for the wordpress themes i use for my clients. I come up with graphic ideas that will look good on the theme, and I have a designer who performs that work for me. Look around your area.. chances are the sites aren't responsive. Opinion but Future-on, people aren't going to want to deal with these complicated sites youre zooming in and out of on your phone. If you can put together a marketing campaign (i was getting a call a day just by sending hundreds of 'cold call' letters out to business owners i thought had ugly websites that looked like they were made in 2007) to change the minds of business owners in your area that their websites are indeed gross, and just aimlessly using their social media and blog without SEO in mind is also losing them money, and you can put together these services to improve and supply reports.. i say go for it. that's what i did.

i'm not really seeing the point in an automated payment system for updating blog, websites. do you have that much clientele that agree to that? i usually just take checks.