It's worth repeating that you will not know if a school or club is right for you until you go there in person.
Many clubs in the US offer free rides to prospective members- I've "bummed" rides in three different planes that way, either going to a fly-in breakfast or just taking a joyride. I'd look into that if I were you.
You see the planes, you meet the people involved... and it's fun.

As far as school intro lessons go- they're usually at a slightly reduced rate; better to pay for a few of those at more than one school than to dive in and lay a deposit down at one school only to find you're unhappy there... in which case you will inevitably end up doing some review flight at the new school (once you find one) and this will cost more in the long run.
In short, don't hesitate to invest a bit in finding the right situation... that time and money will not be wasted.