"It seems you're boinging around a bit as to what direction to head, especially film vs. digital, which is a distinct fork in the decision path. What are your photographic goals? How did you use the T3? What did you photograph? Did you shoot slides and if so, how did you use them? Or did you shoot negatives and have your film scanned at processing and printing?"
Miguel wrote almost exactly what I very nearly wrote in my post:
"A completely automatic camera that is solar powered and needs no batteries!"
An idiot proof sustainable camera, still working 40+ years after manufacture? Sounds perfect to me.
I'm not a serious photographer and I used the T3 as a point and shoot. I'm embarrassed to say that I shoot a role of film and then have it developed, often without being scanned digitally. (I seem to be not just a late adopter but actually regressing: I'm seriously thinking of taking my house off the power and water grids, even though I live in the inner city: so, not even one generation using centralised power generation (my parents' farm had a generator until just before I was born)).
I get the "shoot lots" advantage of digital though - I bought my 3.5 year old a Lego digital camera when I was in Tokyo last week and she's got about 400 photos in her portfolio so far.