Exactly. It is a problem - I respect that Marco doesn't want to stich articles together, but I sometimes reach the end of an article to find myself unsure as to whether that really was the end, or just the end of page one. Would be useful to get some indication in Instapaper when this is the case. I am flirting with Readability for this reason.
One Chrome (and Safari) extension that I found helps is called Page One [https://chrome.google.com/webstore/detail/pojkjlgamiogkhagab...]. It will automatically redirect your browser to the single-page/print view for a number of popular sites (21 as of today).
after realizing that Instapaper doesn't do this I emailed Marco and then signed up for Readability. I've yet to decide if it's worth $60 a year for a Kindle digest, it probably isn't. I'll just send the articles one by one (ugh) and then throw them in a collection. oh well.
http://www.marco.org/2011/07/19/siracusa-multipage