Facebook page likes really have 2 types of value - the first being social authority, and the second being that they give you an audience that's easily marketed to, because Facebook lets you target by “people who like your page, posts, etc”.
In terms of Facebook likes, the first question is "why do you want 1,000 likes"? In my opinion, the only valid reason to care is to demonstrate that you have a real business with an audience. After all, number of page likes doesn't seem to have any impact on your website SEO, so the primary value it offers is social proof - to help reassure visitors to your Facebook business page that you're real, established & authentic.
Some marketers are keen on getting the page likes up as rapidly as possible, which does help with social authority. After all, when you visit a company page on Facebook, it’s going to seem suspicious if it’s only got 50 people who like it. That might be a red-flag for prospective customers.
You can buy those likes on the black market (can’t believe I just wrote that), but Facebook is cracking down on fake accounts as well as liking “schemes” that involve large user groups. I DO NOT recommend buying fake likes for a number of reasons, the biggest of which is that it might get you booted from Facebook entirely.
They’re also cracking down to some degree on “like gates” and content-lockers that force users to like your page in return for a free gift, download, etc. So you can fake the likes, but it’ll probably bite you in the long-run.
Also, from an advertising perspective, boosting your likes through manipulating users who don't have a genuine interest will ruin your ability to placed targeted Facebooks ads to people who genuinely like your page.
My recommendation is to add compelling content to your Facebook page, invite friends & colleagues to like it, and eventually run some ads to boost real page-likes to a targeted audience.
If you decide not to, I think history has shown that it won’t particularly damage your sales volume, but if you’ve got the money for a Facebook ad budget, it’s probably worth doing some page-like campaigns just for the social authority it brings.
If you're keen on pursuing a strategy to boost page likes, I'd work on another part of your Facebook page as well: your online recommendations / testimonials. This can take a bit of legwork, as it requires getting your past & current customers to leave you a positive review, but they offer just as much social proof as likes do, and a well-written review provides a lot more context as well.