Lots of ego flying around in here. No wonder there's such a disparity between musicians and engineers.
I'm a musician AND an engineer. I was a musician 5 years
before I was an engineer, and my constant research has led me to where I am today.
I can see that comment pointing at me, in a very nonchalant manner. Regardless if it is or not, the last four amps I've seen in my studio are:
a. Marshall DSL 50- My Windsor beat it out
b. Mesa Single Recto- My Dual beat it out
c. Engl Powerball- Great amp for live, not in front of the microphone, 5150 got the spot
d. Fender Hot Rod Deluxe- The band loved it, but they ended up loving my Peavey Penta's clean even better.
My point is this, IF YOU MAKE A POINT TO show that you are a connoisseur of guitar amplification, you're going to have an arsenal at your fingertips.
When is the last time you had someone come into your studio with a great sounding amp that had new tubes, wasn't falling apart and was optimized to perform at its fullest potential? For me, never. I see that it could happen one day, from a seasoned fellow with a lot of loot.
If I can't trust myself to be able to provide superior guitar amplification to my customers (who don't spend 2 hours a day researching new products and ways to make their amplifiers sound insane under a microphone), why should they trust me to record them? There has to be some reason to justify recording with me over another fellow or pro studio...
When is the last time you saw an amplifier manufacturer's website (OTHER THAN KRANK) that had legitimately awesome clips of their gear that really represented what it sounds like? But I digress...
As an engineer, you need to be confident, and even a bit cocky. If you don't seem sure of yourself, you're never going to win over the hearts of your customers:
"Dude, do you think you can reamp some beastly guitars for our album?"
"I guess, my tones are alright..."
"You guess?"
Okay let's try that again:
"Dude, do you think you can muster up some rippin' guitar tones for our full length?"
"Guaranteed to br00tally rape your current and two ex-girlfriends, or your money back."
EDIT: Also, no band has ever argued with me when I said, "Let's use my amps for recording, I really spend a lot of time refining them to be the best they can be and I know them well." When I say, "trust me," I never get an argument. Is there a reason why? I don't know, ask my customers. All of them have chosen to do repeat business with me and all of them couldn't be happier with their recordings.
If Derek Jeter hits all of his home-runs with a maple bat, why would you force him to use an oak one?