The web is so competitive nowadays, simply having a site (even if it looks great) won't do you any good.
10-20% of a budget should be spent on web design and 80-90% on actually marketing the website. So if you have a 5K budget you should spend around $500-$1000 on the website and the rest on marketing the website.
If you can't get something built for under 20% then maybe just put up a facebook or google places page in the interim. A website can be a huge distraction from time better spent going out and getting customers.
Also, if you're a designer doing basic business websites, keep in mind on-page SEO practices. It really bothers me when designers completely disregard search engines and do their clients a huge disservice. Designers who can talk about basic SEO principles have a huge leg up. At the end of the day, a business owner is only really interested in more business.
I'm not suggesting this is the OP, but a common mistake I see amongst founders