Robert, no need to make disparaging personal attacks. The point of this site is to share information and debate freely.
1. I see the CBS Marketwatch reprint of your press release, and it only has 2 clickable links, showing that they've edited and limited 13 of your links. The Marketwire one does have 15 clickable links, unfortunately they are all NO FOLLOW links including the one to your client's homepage. No follow links are better than nothing, but their SEO benefit is vastly lower than quality "DO FOLLOW" links. All you're really signaling to Google by stuffing 15 links into one press release is that you're trying to game their algorithm, and that can come back to bite you.
Your report shows over 200 clicks of your links, but it doesn't say which links they clicked on. Considering 13 of the links were to press releases of your competitors, it's very likely the majority of those clicks went to those.
2. "App targets 3D printers". Congrats, your press release comes up first. But guess what? A simple search using Google's free Keyword Planner tool shows it has 0 search volume globally.
So you rank your client first for a term that no one searches for? Not sure that's a win. You may be able to sell it as a win to your client, but for all intents and purposes it may not move the needle much.
3. Marketwire charges $570 for the first 400 words and $185 for each additional 100 words for US national distribution.
eReleases, which distributes on PR Newswire, charges $299 for 600 words for US national distribution.
Thus, for the same release of 600 words, Marketwire would cost $940. eReleases via PR Newswire would cost $299. All things being equal, I'd go with PR Newswire for $641 less any day.
Here's an article that talks about the death of SEO via wire services: http://www.pressat.co.uk/blog/2013/09/google-press-release-no-follow-effect/
We both agree on one point: targeted media relations with a good story beats a press release any day. That's a given. And you are correct, putting out a press release is better than nothing for clients who are really budget-strapped.
But I wouldn't over-promise the SEO or link benefits of a press release via any wire service. That same amount of money could be used to get quality backlinks from reputable websites or directories.