Yellowletterscomplete.com 99 cent yellow letter?

[Thomas Fortune]

Just mailed my first yellow letter campaign about 2 weeks ago - decided to use the yellowletterscomplete.com 99 cent option, and sent 250 letters to a list of high equity owners. Only recieved 3 calls so far...so my question is - has anyone else compared these low-budget letters to the higher end letters?

Yes, i know my list is tiny. Planning on scaling up here shortly, but wanted to start small to work out any kinks in mailing, phone calls, etc.

The envelopes look good (truly hand written), but the letter itself is more obviously computerized. I'm wondering if paying for a more expensive letter will be more cost effective in the long run.

Thanks!