The canvas of regular Toastmasters meeting supposes that couple of us deliver prepared speeches.
While others perform different roles: President, Toastmaster, Table Topic Session Master, Evaluators, Timer, Ah-Counter ...... . 
In total, beside two or three scheduled speakers, there are 10 other parts of the meeting.

Why not just come and listen to our peers, and than go home to groom own speeches?

The reason is that majority of us are striving to become more influencing leaders!

"Take a quick look at your local bookstore’s shelves and you will likely find hundreds of volumes about leadership.
Scan the table of contents of a handful of them and you’ll find that there are many different – even contradictory – theories about what leadership is, and how to be a good leader.

No matter how good some of these books might be, there’s no arguing that it’s difficult to advance your leadership skills without actually taking on leadership roles yourself.

In Toastmasters, members advance in the Leadership track of the educational program by participating in club leadership activities.
The Toastmasters approach is hands-on and participatory, not dry and academic; it’s a place to try your hand at leadership instead of just reading about it.

So if you’re looking for a place to put some of those leadership ideas you’ve been reading about into practice in a safe, supportive environment, give Toastmasters a try." , - is written in the article, put on TM International web-site.

EBA TM Club teem fully agrees with this statement.

Performing various Toastmasters' meeting roles is vitually for self-growth and leadership skills foster.

Just come and try, you will see with your own eyes!