Op, just about every place has a membership. They are usually $20 bucks a year, and many will wave the fee if you are a "vendor" selling them your overages.
Wholesale price is really an area thing.
In my area I get:
$325 for unbelievable product.
$300 for top shelf high quality.
$275 for good shit.
And so on.
Some will buy the nastiest shit you could have for pennies and then use it for medables and hash.
Trimming/shake **
$100 and ounce
$150 an ounce for just trimmings.
**(from top shelf and unbelievable harvests)
Clones:
$5 to $15 bucks each
That $25 to $30 gram is a $325 wholesale ounce.
That $15 to $20 gram is a $300 wholesale ounce.
3 things that set top shelf and high quality above the rest.
Bag appeal: How well it's trimmed along with the natural shapes and color of the strain.
Smell: How well the smell matches the strain.
Taste: Was it cured properly and does the taste match the strain.
(bubble gum should smell and taste like bubble gum if it was grown and cured properly)
3. things to always remember so you have an advantage:
1.Grow something no one else is growing, set the trend rather then follow it. "If you're smoking it and want to grow some, everybody's already growing it.
2. Never go in to sell overages "needing the money".
3. Have it appraised: Stop by several shops and ask what they think of it, and what they'd give for it.
(why sell for $250 if the other guy will give you $275 or $300)
Caution: Be prepared to have your ego shattered by shop appraisals.
Don't take it personal, it's not.