CCKnights -
Sorry, I'm not familiar with USA Athletics International or the level of competition. But, son has played in tournaments internationally and as a whole it was a great experience; the travel, opportunity to meet players from around the world who love baseball, and see other countries through a sports venue. It really depends on what you expect to get out of the experience. The level of competition may or may not be as good as what you are use to and will depend on the tournaments entered and countries/teams participating. You should look at the baseball side of this opportunity as you would any other. Ask them about the organization's reputation and experience, who are they playing, and the level and experience of the coaching staff. Traveling abroad with young kids takes great coordination. You will want to go with an established company.
IMO- generally, international baseball should be viewed mainly as a
vacation that has opportunity to play a little baseball at the same time. No college scout will be in Europe or Asia to watch these games unless he happens to be your coach, the parent of a player, or on vacation!
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So if the budget allows, do it just to have fun.