Ryan,
I'm not saying that all expenses are applicable to all properties all the time. Quite the opposite. What I'm saying is that it is impossible to know what expenses any given property are going to have in any given year.
The extensive damage done by some tenants is a perfect example. Fortunately, this is infrequent, but it does happen. I own several dozen rentals and have had damage in excess of $2,000 (materials only) occur twice. A friend of mine recently had a tenant do $10,000 in damage to one of her rentals. Chances are that when you only own a few rentals, you won't experience this very often, but let's look at the result.
Let's say that you buy a rental that only has $15 positive cash flow per month ($180 per year). Things go exactly as expected for the first 5 years, but then you have a terrible tenant and he does $5,000 of damage.
In this instance, your entire profit for the entire 5 year period is wiped out and it will take you an additional 22 YEARS to make up the loss (assuming that you don't have any further losses - which is very unlikely).
Now, contrast that to someone who bought right and has a positive cash flow of $100 per month ($1,200 per year). If the same person has a $5,000 loss, he will be able to cover all but $200 of the loss from the cash flow of the 1st 5 years. Then, during the next 22 years, he would make $26,400 with which he could invest. Multiply that by 50 or 100 properties and you're talking about the difference between a failed business and a successful business.
I believe that the opposite is true. The 2% of gross rents IS possible in the great majority of markets, although that does not include the coasts and bubble areas where a lot of people live. If you want to see where these prices exist, take a coast to coast flight and look out the window. Flyover country is where prices are sane and great deals can be found.
I'm not saying that finding these deals is EASY in any area. It requires knowledge, networking (I hate that term), and a lot of work. With work, patience, and persistence you will find these deals in most areas (forget California, Florida, NYC, etc). In addition, it shoudl be remembered that in the rental business we're not flipping houses, wholesaling, or running a business that requires doing 5 deals a month to survive. If it takes 2 or 3 months to find a single deal, then so be it. It is better to buy one great deal for a rental than 10 bad ones.
There are currently several posts on this site where people have bought marginal deals and paid the price for doing so. Shouldn't the newbies learn from these instances, instead of learning everything the hard way?
I do get frustrated seeing newbies screw up things that should have been learned the easy way. The information is available in many forms (from books, from successful investors at their local REIA, from this forum, etc). To simply ignore the experience and advice of successful investors and intentionally make mistakes (all the while trying to rationalize it or attacking the messenger) is crazy. Of course, that's why the vast majority of newbies fail and I guess there is little you or I can do to change that (even though we continue to try).
Mike