In many cases, having a website will increase your income. If you want to increase your income, then the answer is yes.
With more people using the internet to find what they want, having a website is the modern shop window. And you need a good 'shop window' to attract customers.
Suppose you have a rental property which you advertise online. How much information can you put on that advert? How many pictures? How does it compare to the adverts with associated websites? Is that going to attract potential customers?
Having a link to a good website will enable you, at very little expense relative to your weekly rental income, to offer potential customers a really good idea of what you are offering. Many people will just skip your advert because there is no website with more information. A good website will show people what you are offering, and give them more confidence that if they book your rental they will get what they want.
Here are some benefits of having a website:
You can have your web address in adverts in the paper. That enables a small inexpensive advert to lead people to an extensive website, with everything to encourage them to contact you.
If you advertise online, you can extend your advert with a link to your website. That converts what is probably quite an expensive but restricted advert into an extensive advert.
It will enhance the presentation of your business, and it will look more attractive to potential customers.
What would I have on my website?:
Pictures of your products, your rental and the surrounding area, or the results of your work.
Information about what you are offering.
Prices.
Contact details, opening hours, directions and parking.