K not being funny but... You thought about getting a bike, while busy eating a pizza and clipping your toenails ?
Not the best way to approach this type of thing - let me try help a bit.
The bad
When it rains, you get wet.
It's f-ing cold in winter
Cars generally try to kill you, as well as busses, taxi's, pedestrians, potholes, small animals running across the road and a whole host of other things - things try to kill you !
Helmets,jackets, riding pants, gloves etc are very expensive, factor this into your accounting!
Besides fuel consumption, biking is not always more cost effective than a car ( and in a car, get to try kill m/cyclists!)
Tyres and general components are generally more pricey than a car.
If you just riding a bike for the sake of riding a bike - it can be boring! A bike is meant for more than just going forward. ( see The good section)
Non- bikers will not understand biking and think you're a scumbag, pain in the #ss, self rightous prick ! But that's only partly true and their problem.
The good
It's AWESOME
If you have a bike and make plans to do something other than going forward - seeing the country, travel with mates or just going for a brekky, it's magic on another level.
New people to meet
New experiences
Traffic isn't a problem
Oh! and it's awesome.
The serious
Visit this site:
www.wilddog.za.net
You will get a world of advice here and you'll start to get an idea of the type of rider you want to be - track, road, dual sport (although this is mostly D/S bikes) or motorcross.
Seriously, do some homework, ask a lot of questions because buying the wrong bike may spoil the experience for you.
Good luck !