Ask HN: Should I feel pissed-off at having to pay double?

I've been asked by a SaaS sales guy to pay double the monthly fee as I can't afford to commit to an annual plan up-front. It leaves a bad taste in my mouth, but should it?

For context, the plan costs $99 a month, but because it's _slightly_ custom, they wanted 12 months up-front. None of their standard plans require paying for a year up-front. When I suggested that, as a bootstrapped founder, I couldn't afford to see $1,200 walk out the door today, he suggested I could pay monthly, but only at $199 a month (for the benefits of the $99 plan). Kinda feel a bit shafted, but should I?