I will include the PSDs in the $100 price only for people I know. I've had people buy designs from me before and use the PSDs to steal my custom styles and use them to create other stuff for themselves and other people. I charge extra for PSDs in this case to make up for the potential risk involved. I could flatten elements to prevent theft of the styles, but it would make the text uneditable and thus render the PSDs practically useless.
Anyway, I don't see where the PSDs would be needed in most circumstances regarding TGP design as there are no elements that should need changing later (unless the name of the site changed which is pretty unlikely.) I can see where PSDs would be needed for things like paysites and promo material that might need to reflect changes in price, content availability, etc. But I don't see a need to change days of the week or other elements in a TGP design.
I will obviously include the PSD of the logo with flattened elements on a transparent background for creation of promo material in the $100 price.
Design is still available if anyone is interested.