I live in maine, cold even in june in the morning. I have a biturbo and a side kickstand. No trouble idling, starting or using the choke.
If I'm impatient, I have to restart the bike or choke it again.
I've never once thought "Aw, geez--This darn side mount kickstand makes it harder to start cold..."
That's a great question though-- I think a more significant loss is that the centerstand makes it easier to do repairs.
I've got a 2000 targa