I'm not interested because:

1. A mass mailer is just going to send out all the letters that print. They won't pull out the ones where the tenant has called and explained they will be late and committed to pay on a certain day. They won't pull the ones that always pay 3 days late b/c that's when they get paid. They won't pull out the ones who came in that morning and left checks in my drop box. So, in addition to wasting postage, it could annoy a tenant who thinks I ignored his situation or didn't get the check he left in the box.

2. We often write personal notes on late notices, e.g., "We missed you this month!" or "You are in danger of going into lien status. Please contact us right away so that we can try to help you avoid losing your goods to auction." A mass mailer not only won't do that, but they wouldn't even know who should have a personal note and what it should be about.

3. You lose the ability to get a double bang for your buck. Now, I can drop in a flyer for a special sale on retail items, a storage special, a truck rental special, or notice of an auction (which draws buyers and also is a subtle hint to delinquent tenants that they could be next.)

4. Looking at those letters when they are folding them to mail reminds my employees that each one of them represents a collection opportunity. I want them to stay in front of collections, not behind them. I know when I send the letters out, so I know when to place the collection call. I don't know when WSS will mail my letters - not for sure, anyway.

Balance those things against the minor productivity gains, and it's a bad trade off, IMO.