ubiq: you do not have to use a George forman
you have a good point. This is a jarring disconnect – we are considering a person who has a yetzer hara for George Forman that he can and yetzer hatov to risk both money and personal safety for a mitzva of tevilah.
We need to consider how do these two desires simultaneously coexist in the same neshomah.
L’tzad zechut: he is willing to buy the most expensive appliance (is it? Not a bokeh) to then risk to lose in toveling. Mamash hiddur mitzva. He also probably paid $300 for the esrog.
On the other hand, maybe he is just driven to excesses in everything.