.- I mailed out my postcards at a quantity of 300-400 and an interval of once a week.

Focus on getting lead quality, not lead quantity, and you'll get a better ROI from your marketing.

Pictorials are used for branding not instant gratification so don't expect the call quantity to be the same as a text PC. 2) Change the call to NAME....

I believe this business is all about marketing so beginning tomorrow I'm going to detail for 30 days the marketing types, quantity, frequency and prospect groups.

I have incorporated it into my business and it has really increased not only my lead generation "quantity", but also the "quality" of the leads coming in, and in the end thats really what it boils down to, "quality" over "quantity".

Because of that, any & all markets are susceptible to being saturated with newbie & seasoned investors sending out mailers as a way to get into the REI.Quantity over Quality - You can create the most prettiest and heart warming mailer, but the game of Direct Mail (or marketing in general) is about quantity (i.e how many mailers can you send out and over what period of time before you get a response) rather than the quality.  

I personally dont know of any marketing company that would do small quantities of letters/postcards (less than 100) so you could either wait until you have a big list, call the people you want to follow up with or get some postcards printed up that you address and send yourself.

@Rick Harmon , I agree, the more difficulties are involved in a deal, the fewer the competitors that want to do the work.

Not going to happen, but shoot for quality, not quantity when it comes to calls.

Sticks out more than a PC and you can get them in large quantities for less than $0.04 each.