I've been trying to decide on this for a while now and I need to decide before tomorrow because of a great deal which ends by then.
Current situation: I'm currently shooting with a Sony a580 and the following gear:
Sigma 10-20/4-5.6, Sony 35/1.8, Tamron 17-50/2.8, Konica Minolta 50/1.7, Sigma 70/2.8 Macro, Konica Minolta 75-300/4-5.6 (Kit lens, sucks) and a HVL-F42AM (flash)
I've been worried about the A mount future for some time now. It's been a while since Sony announced any A mount lenses. It seems like only the E mount is getting any attention from Sony. On top of this, I'm a student and I basically rely on the second hand market which isn't that good when you're shooting Sony in Sweden.
This made me think about Canon and how if I'm gonna switch, I probably gonna do it ASAP. A deal came up on a major Swedish site. A Canon 6D + 50/1.4 + 32GB Sandisk Extreme + iPad Mini 16GB for $2.360/1.731€. I have no need for an iPad and would sell it if I got the deal. Remember that this is in Sweden so the deal might not sound "as good" to you if you're American example but the second best price is $2.400 for body only here in Sweden so it's pretty sick.
However, would it be a wise choice? It would take some time to get the range of lenses I have today... I would be stuck on only the 50/1.4 for a while...
I mainly shoot macro and portraits. My goal would be to get a 28-75/2.8 (Tamron perhaps) and then get some sort of macro lens. Maybe save my Sony gear during the time I'm low on Canon lenses?
On the other side... probably getting a Tamron/Sigma 70-200/2.8 for Sony. But that would probably seal the deal and I'd stay on Sony forever. If it turns out the let the A mount "fade away" (=Not announcing any more cameras or lenses) I'm stuck in a dead system and if my camera would break down a couple of years down the road my only alternative would be a couple of years old second hand camera...
I would love any opinion you might have as I struggle to come to a decision. There's a lot of things I would miss in the Sony system (In-house IS, Tilt screen, etc.).
Thanks in advance!