As with most things in this world, everybody is entitled to their own opinion. Some dutifully voice theirs louder than others. Myself, I state what I have learned throughout my years in medicine with the optimistic hopes that it will help some future colleague. Little does it affect me whether or not my opinion is accepted.
With that said, many of the points stated by the "opposing side" are valid. Yes, I agree, taking a class for a second time is definately easier. However, that was not my point. My point was and still remains: do you really need to spend (or ask your parents to spend) a significant amount of time and money to take a class that will only minimally help you when you take it again in med school? (By the way, do not confuse "taking a class again" with covering the same material in college that is covered in med school). When considering this decision, you should definately weigh it against the opportunity of taking those classes (as mentioned previously) which will aid you in becoming a more "worldly" and thus a more competitive doctor.
If you happen to feel that you are lucky enough to attend a college that offers an incredibly advanced course in biochem, anatomy, phys, etc. that is so advanced that you needn't study the material anymore and might as well bypass the basic science years, take the Step I, and proceed with the clinical years...congratulations, for you have found the proverbial needle in the haystack! If that is the case, by all means take the courses. For the rest of you attending the colleges in the real world, I encourage you to make the decision with caution since time misspent is time lost! I could only wish that I could regain the time I wasted taking some of those "med school prep" classes.
I also agree with the jed's points about the benefits of college courses being highly dependent on individual characteristics and preferences. However, jed failed to mention the most important factors involved in determining a class' helpfulness: who is teaching the class (important for background and teaching style) and what is the focus of the class (will the material covered and emphasized in the class be similar to that which is seen in med school). From my experience, a class could be essentially useless if either one of these key factors is sub-standard.
One last point in reply to dala. I would not be so bold and quick to judge somebody's opinion as ludicrous, especially considering your relative inexperience in the matter (a brand new first year med student?--please correct me if I am wrong). If you wish to do well come third year, I highly suggest you treat your elders with a tad more respect. (Hint- check the profiles prior to replying).