It always grinds my goat when I hear that, must be honest. There are loads of things you can do for a working well-lubed business with a new website. Such as start increasing your prices more, and do less work for more money. Or start subbing it out, and do no work and earn money. Or start taking on new staff, and spread the love. Or take on an apprentice, and spread the skills so it doesn't die off.
The only reason I could ever see for somebody not wanting more business in, is if they provided work to only domestic (not VAT registered) customers and were staying under the VAT threshold themselves, to prevent them from being 20% more expensive all of a sudden.
Other than that, why would anybody not want more work?
And you're kinda putting all your eggs in one basket there. Make hay while the sun shines and spend some of your profits on protecting the profits. What happens when you've replaced all the boilers for your county? lol 😛