There are Trainers and Pokemon that will allow you to do this for specific types
You can switch your opponent's Active Pokemon for anyone in their bench, but if you do it, you must discard both Iron Bundle and all the cards attached to it
You pay a one-time donation to get sleeves or playmats
Lists are a good way to quantify ones opinions
PSA is one of the most trusted card grading companie and it examines your cards and assigns them a grade on a 10-point scale, based on condition factors like centering, corners, edges, and surface quality
I'm confident these will drop a couple bucks in price between now and one month post-release, but the reality is that these are always solid pulls from booster packs because they hold their value well