I saw Mail Chimp at $200 a month for 10,000 and thought.. really? However, when I look at Mail Chimp it seems to be $75.
So: 10K subscribers, Monthly charge, Unlimited sendlimit
Mail Chimp - $75 - http://mailchimp.com/pricing/all/
SendGlide - $29 - http://www.sendglide.com/
Still favourable for you but significantly different. I appreciate that pricing is always complicated. Am I missing something?