That $20,000 isn't a Venture Card limit.

Like Jim and Beth, we put absolutely everything on the card, including our timeshare maintenance fees, which are considered travel expenditures so we can use the purchase eraser for those, as well as airline tickets and hotel rooms here in the states. I keep track of our finances with Quicken, and just did a quick check: in 2014 we got over $1400 in travel purchases erased just by using this card. Yes, there is an annual fee, but well worth it.