I believe someone already suggested it, but why don't you wait until the end of the year (late Nov/early Dec) when TW does their gift card routine and pick up a nice machine then.
If that idea doesn't appeal to you and you want/need one now, pick a machine and pull the trigger anyway. I mean, eventually it'll pay for itself so I wouldn't get too hung up on whether or not you save a few bucks initially.
Still, your situation is nothing to get worked up about given the options at your disposal and the availability of the machine, albeit at a slightly higher cost than what you thought you were going to pay.
Need help finding lost dog: walks with a limp, recently castrated, can only see out of one eye - answers to the name, "Lucky".