If you're selling a product that HN readers will buy then that's awesome, and well worth doing. Those of us who sit and read /newest will happily upvote things that are great.
If you're selling something that will appeal to a different group of people who don't read HN, or to the mass market so HN readers won't make much of a dent in the metrics, then it'll just spike your bandwidth costs for a while with no upside. If that's the case then focus on marketing to your potential customers. Ignore everything else. 30K views from random people who won't buy what you're selling is vanity.