What does it do to your credit to open new cards and close old ones? Is this something you would do for a one time trip? What about addicts who like to vacation more often? It could lead to opening and closing cards yearly to take advantage of new deals. Would this hurt your credit?
These are great questions and something everyone absolutely should be aware of before they embark on a similar strategy.
People who really get into this definitely open and close a number of new credit cards every year. I know people who go all out and open ~20 per year to earn these massive bonuses.
My wife and I are both CPAs, and a little conservative financially, and that was just too much for us. So we just go card by card and don't juggle multiple cards at once. We probably open 6-8 new accounts per year, spread across the two of us (each person can open a distinct account for every card type).
So each of us probably open 3-4 new accounts per year. For people like us with ~800 credit ratings, a long credit history, and no major need for credit in the coming years, we decided it was worth it to go for this even if there was a negative impact. We personally thought it was worth a minor credit score hit that wouldn't impact us at all, in order to earn the free travel.
Not everyone would make the same decision and it is always based on your comfort level and your own life circumstances.
We've each seen our scores fluctuate down about 25 points or so temporarily, but right now they are both actually up from where we started about 4 years ago. So it hasn't impacted us negatively at all at this point, though at times it would have been slightly lower.
Could vacation addicts keep doing this? Yes, there is a large universe of at least 20-30 of these credit cards that have these huge bonuses and a couple like us could each open them, so we're talking 40-60 cards over a number of years before we'd ever have to double up on them. At that point you'd be eligible for many of the cards again, and you could start right back up.
It works for us, and I try to make it as stress-free as possible so this doesn't overwhelm my life. We've saved some considerable money and I think a lot of other people could as well