Hmmmm makes me wonder how you ever get this strange notion.lewong said:...edit...
I am not a pro in photography and am really in the infant stage.... but the idea of getting a 5D as compare to the 30D mainly based on my view that future cameras will be based on FF format - maybe I am wrong..... just didn't want to buy something that will obsolete after a few years. What do you think.
...edit...
Look at it this way, Nikon, Sony (the former KM), Olympus, Pentax etc are all shunning full frame. Nikon has pointedly introduced "top of the range" lense for the apsc sensor. Olympus will be sticking with their 2x crop until they change a mount, and Pentax is not likely to budge into full frame at all to keep their dSLRs cheap.
Not to mention, Canon makes most of its money form the budget dSLR side (300D/20D/350D/30D), I really doubt they'll abandon their money tree.
The day full frame cameras start to take over the world will be the day Nikon moves to full frame, or when Canon is willing to sell full-frame cameras at the cost of normal APSC sensor cameras. Nikon has indicated that they're unlikely to move to FF, so... the ball's in Canon's court now?
As for a few years down the road.. Are you sure you want to future proof technology? You must be joking right? Given the refresh rate of Canon dSLRs being once every year or so.. A few years down the road, let's just say 3 years.. your brand new 5D will most probably be outperformed by the canon budget dSLR on the market.
*points to the 2002 March $6000 D60 and say, 2005 March $1800 350D.
Since you don't have the NEED to have a FF dSLR right this very moment, I suggest you better spend money on some good lenses. Lenses get obselete less frequently. Of course, if you have the $$ to spend, why not?