http://www.sathyasai.org/
During festivals Puttaparthi is transformed and people come from all over the world to attend the celebrations. There are usually musical performances, plays, and discourses by Sathya Sai Baba during this time.
There are many sites within the local area that are worth seeing are Chaitanya Jyoti museum, SuperSpeciality Hospital, Spiritual museum, Gopuram(Ganesh gate), the samadhi shrine, wish-fullfilling tree, meditation tree, planetarium, gokulam (where the cows are), market places, and explore the countryside on the outskirts.
There is plenty of paraphenelia with Sai Baba's image on it in Puttaparthi: watches, photos, statues, badges etc.
The book shop on the ground level of Sai Towers Hotel (opposite the Ganpathi Gate) has a great selection, with fixed prices. They will also arrange postage for you, if you would like to send them home.
Sai Towers offers clean rooms, excellent service, and reasonable rates. Opposite the Ganpathi Gate.