I am trying to figure out if the Disney shuttles (like from the resorts to the parks etc) can be used by guests not staying in the Disney Resorts.
We're probably going to be staying at the Wyndham Bonnet Creek, but they recently started charging $5/per person per ride on their shuttles. With a group of 6 that amount can add up for a week stay.
We'll be renting a car though (in order to get to and from the airport and to church on Sunday outside Disney World). Would we be able to drive over to a Disney resort and ride a Disney shuttle to the parks (to avoid paying a parking fee at the parks)?
This is our first Disney World visit, and I'm still trying to get my head around how everything works.
This is a common question that generates a bit of heat (as you've seen with Zeta, and I'll chime in with later

).
To answer the question in your title, yes, anyone with a valid WDW ticket may use the WDW transportation system to get around the resort complex. The price is included with the admission media.
To answer the question in the body of your post (as Tink already did), no, it is taboo to park at a WDW resort in an effort to avoid the parking fee. Likely, this is exactly why the resort in which you are staying has the transportation charge, as many people not staying there have taken advantage of their "free" shuttle. Otherwise, the price would be included in the room rates/member dues. In essence, you are feeling the pinch of this same thought process.
That said, you are going to enjoy having your own car versus using the WDW transportation as you suggested mainly due to the flexibility this option offers. At the end of the day, you are going to be tired, and a nice comfortable vehicle waiting for you in the lot is going to be much more appealing than waiting for a bus with hundreds of other guests staying at the resort in which you parked. It really is nice to get in the car and drive directly to your resort versus fighting the crowds.
Lastly, as a bit of a purist when it comes to first visits, I feel it is important for first-time visitors to drive to the MK! The excitement of driving under the arch, through the ticket booths, riding a tram to the Ticket & Transportation center (TTC), then hopping the monorail or ferry to the MK is the way entry was designed to be experienced. The trip is just as important as the destination at Disney, and the queues are designed to set the story before getting to the ride. Sit back and enjoy!
Now onto the reason these threads get so much heat....
You could always park at Diwntown Disney for free and then catch the shuttles. That's what we so when we stay at the Westgate.
Excuse me? I am a Certified Public Accountant and it doesn't take us long to get anywhere in Disney from Downtown. If you don't agree, fine but don't try to disparage me because you disagree w/ my suggestion.
<in the immortal words of Johnny Storm; Flame On!
>
As a CPA, you should know better, since parking at DTD for the day, taking up a spot designated for shoppers of that complex simply to avoid a parking fee, is completely unethical, and our society hold CPAs to a high ethical standard. There are many threads on here that discuss this ad nauseam, and the conclusion is the same, the act is immoral and unethical.
In monetary terms, the cost for parking at DTD is absorbed by the shop owners (which is not all Disney) in an effort to draw in locals to their establishment. In contrast, Disney World has designated parking areas for those visiting their parks and resorts, separate from DTD. Parking here for park visitation is essentially stealing from them, since a spot may not be available for someone visiting mid-day that would like to spend money at the complex (shop, bowl, or see a movie), thus they do not get a return on their investment.
DTD does not have enough parking for people who game the system by parking there for park visits, and as a person who sometimes is unable to get a parking spot at DTD to shop, I very much dislike this practice (toned down to keep Tink happy

).
Bottom line Zeta, I hope Disney begins to charge for parking in the new garage coming with Disney Springs (planned DTD refurb), which can be validated by a DTD shop if within a certain time. This will keep out the <snip>

bitelip

that want to avoid the parking charge.
Please don't park there again for the purpose of avoiding the parking fee at a WDW theme park.

Please.