Perhaps I'm being too analytical, but it's my nature. When I see the term dream antenna it's too vague of a term for me to start thinking of what it could be.
For example, my personal dream antenna has these characteristics
- small and compact - it has to fit outside my apartment window and be discreet
- high gain on channel 14 as well as high gain on 64,65,66. These are my weakest stations. I need about 12dbi for channel 14. Seem 7-8 dbi on 64-66 brings these in except on tropo nights I start to loose them
- not too directional because all my target digital stations are within 45 degrees, the weakest stations being 45 degrees apart
- directional enough to reduce the gain on my locals which are not in the 45 degree target digital stations
My current antenna fits all the criteria except the gain on channel 14 is too low to bring it in.
Your dream antenna is different from mine.
Money is a value factor. I'm sure if a $22 dollar antenna would bring in double the stations the money requirement would be flexible. A $400 dollar that brings in one more station probably wouldn't.