Both options are fantastic but need to understand the difference.
SEO is time consuming & changing process while PPC is quick & result-oriented.

If your business relies on Web traffic. It’s one of the best ways to bring traffic to your site, and it works wonders when applied with SEO (search engine optimization). In other words, if you’re still using SEO as your only marketing avenue, you need to balance/upgrade your marketing approach because your competitors may already have.

Not to say that SEO is not useful. The key is to not rely on it completely, but instead to follow what several other successful Internet businesses are using—a mixed and complementary search engine marketing method. This style still makes use of the SEO way to rely on Internet spiders and carefully placed keywords. But it also accesses valuable paid search, online public relations, and other strategies.

The key is that an integrated and varied approach can launch your business through the roof without a lot of wait time. On the other hand, this quick start, if managed properly, can be sustained, so that success is long-term.
A careful balance of online marketing approaches can also be cost-effective, leading to a combination of high income and low costs. That’s a good combination.

You Need Them Both