having just read some of the rubbish written by people who do not owe a TM, yes you may have tried one, but you need to use any machine for a length of time, to realise its benefits, I have one question that springs to mind:-
No wonder the TM'ers formed their own forum, they know TMs, they know the advantage and yes, dis-advantages and they are several of these.
I owe both a porty and a TM and use both regurlar. And if you think a porty is as good as a TM, you are wrong, if you think a TM is the answer to everything, you are wrong. Horses for courses.
If you started with a single vac, low psi pump, you upgraded for a reason, and so the cycle carries on. If you started with a nice machine, you still think about upgrading to a bigger and better machine, thats business.