I think it IS being too picky....as, essentially, we are choosing to be fat instead.
That is the most basic way to look at it...the economics of choices. I am not an incredibly fit guy, so not preaching...just giving my insight regarding the exercise or not choices which I too have gone through several times. It is basic economics lesson in cost vs. benefit.
Working out costs a lot (not just money)...especially if you don't enjoy it or find it boring or painful or uncomfortable. In order for you to put yourself through that, you have to believe that there is a benefit greater in value to the effort required to exercise. Paying for more expensive hobbies takes away some discomfort or boredom of exercise, but at the additional cost of dollars and time. Is the increase in pleasure greater than the dollar and time cost of doing other activities?
The biggest problem is that working out for the sake of working out has no real benefit immediately if you don't enjoy it. It is an investment into your future health and you have a period of time to get the return of your investment. The flip side is that when I decide to gorge myself on pizza and beer more often, there is also a delayed health response to that...but a very immediate delicious response. Before I know it, I am gaining my weight back.
No one has ever eaten a pizza or cracked open a beer by accident. No one thinks eating an entire pizza and 6 pack alone is healthy...the problem is when we (me) become apathetic...and say...awww F it...it tastes awesome.
As far as motivation
The only thing that actually gets me motivated to be serious about losing weight is when I gain enough that my clothes are uncomfortable, and I feel uncomfortable in my own body...and I have to tell myself...I have no excuse other than laziness.
I make myself run. Not because I enjoy it...but because it is the easiest and most convenient way to get a work out. No special equipment, no need to drive anywhere, all I need is shoes. No excuses for not going...other than admitting to myself I am being lazy. I run away from my house until I am tired...and...well...I have to turn around and run back. Even if I do a quick 20 minute run, I am lapping everyone on the couch
I hate having to look at myself in the mirror, and admitting to myself I am just being lazy and letting myself get fat. I used to blame it on being out of college and not having a free gym...until my apartment complex had a gym. Then I blamed it on the gym there being too small...until I got a job with a nice gym in it. I blamed it on not being able to play sports like I used to love, until we had work sports leagues that I was too lazy to join.
All of these excuses...are just that. But I will tell you, when you exercise regularly and become more fit, those enjoyable activities become a heck of a lot easier and even more enjoyable. I'll never forget the one time I went snowboarding and all of a sudden I wasn't enjoying it like I used to because I was too out of shape.
Everyone has different motivations, but I just try to look at the bigger picture. It may be 30 minutes of pain tonight, but in 2 months, it will be worth it.
60 days from now, you will wish you started today