Insecure writer: changing point of view

Right now with my writing I'm debating which point of view to use in my next project, after I've heard rumbling from several different places (such as Authoress at the Miss Snark's First Victim blog) that the publishing industry is getting tired of first person present tense. A famous example from a book that probably influenced a lot of writers in recent years to choose this tense (including myself):

When I wake up, the other side of the bed is cold. My fingers stretch out, seeking Prim's warmth but finding only the rough canvas over the mattress.

Authoress says she might rewrite her entire work-in-progress from first person present into third person past tense. Wow! Re-writing an entire book to change tense?

The first Wednesday of the month
 is time for Insecure Writers Support Group,
hosted by Alex Cavanaugh and his
excellent team. 

Ironically, at the same time I'm hearing this talk about how first present tense (made famous in Young Adult by The Hunger Games) is no longer in vogue, I started reading Dodie Smith's coming of age book, I Capture the Castle, written in 1948.

And written in first person present tense! (In the form of journal entries). And here I thought this point of view was a fairly recent innovation.  But it shows that no matter the time period or current trends in publishing, a really good story will trump anything.

I think it's a good exercise to play with different points of view when you are getting started with a new story, finding which one is the perfect "fit" for your characters and the style of the book. I've never really given much thought to which tense I use: for my last story, I just jumped right into first person present tense instead of picking what was the most natural fit for my story, I was reading a lot of present tense in other books at that time. To be honest, all my most favorite books are written in third person past. (Though now that I've fallen in love with I Capture the Castle in present tense, I wonder....)