Why not to use SurveyMonkey

Let's say you want to run a survey or two, so you look at your options on SurveyMonkey. So you start here:

http://www.surveymonkey.com/pricing/?ut_source=header

The "Select" option looks good, with unlimited surveys and unlimited responses, so you click sign up. You dutifully fill out the purchase form, making your way to the bottom of the page, but as you're about to submit, you notice it's set at a yearly price, not monthly.

No big deal, just change it to monthly...but there's no option for that. The monthly plan are on a completely different page! Now you get to fill out the form again...your time is worth nothing, so who cares.

If that were it, I wouldn't be writing this...

So, you sign up for the "Select" plan on the monthly page. A few days later, when you log in, you see a message suggesting that you should upgrade in order to get unlimited responses.

Uhm, your plan has unlimited responses, right?

Nope. SurveyMonkey's "Select" plan has different features depending on if you're billed monthly or yearly.

That's insane. Who does that?