Quoted from pinballinreno:

My pristine ToM is in storage. Ive owned it may years, played thousands of games on it.
Ultimately after years of playing it one can get to the wizard mode on ball one.
Its a great game but gets old after awhile, especially when you master it.
But its a great game if you are new to pinball, lots of easy shots and combo after combo!
Great multiballs super cool magic tricks and very cool video modes.
Absolutely nothing to dislike at all on this title, in fact tons of things that are special and endearing.
Though in storage, mine is not for sale lol. I'm very fond of it.
Right now I'm playing my Houdini. Difficult to master, very rewarding when you do.
Its a players game. Fun but brutal at times, much like AFM. You love it or hate it, sometimes both!
With a proper setup, Houdini flows like butter and is a joy to play.
I would definitely get a ToM, but seriously look at Houdini as your skills increase.
In a perfect world you would have both games.