There are a variety of reasons why courses could be different prices.
If it is the exact same course but a different date the difference would be that one is on sale as the date is fast approaching.
If they are the same type of course but offered by a different company there are a variety of reasons why the regular price may be different. Some companies offer snacks, lunch, fancy offices in the downtown core, hardcopy/softcopy manuals, certified training or not.
Some times training companies feel their training is the best and have no better reason for charging more.
If you have specific questions about a course feel free to give us a call and have us check into it for you.