I don't think you get it.
When ASICs come out, and they will, your GPUs will be worthless. LTC mining won't be profitable, for the reasons you describe(switching to LTC when ASIC comes out). This is a zero some sum game and you will have competition from all those who choose to stick with GPUs when the ASIC bomb drops on them. You will not be profitable!
So the main question is "when will ASICs appear?". If they come out in the next month, you will have 15 btc to pay back a 100btc loan and have no income. repeat for 7 months. If you think they won't be out in 7 months then your loan might make sense. The consensus is that they will appear +/- 1 month from Jan 1st. I tend to agree. Regardless of the consensus view, the whole threat of ASICs is a wild card that brings a tremendous amount of risk with regards to GPU mining investments. If I were to loan you the money, i would want an unreasonable amount of interest(75%monthly) to cover this risk.
So keep going on about how you can make it work. Regardless of whether or not you can(you can't), NO ONE IS GOING TO LOAN YOU BTC FOR THIS INVSTMENT!
Come back with a better plan and then you might get a loan.
Good luck with your job search.
Again, you're missing the point that when the LTC network gets flooded with BTC gpu miners it will cause an outflux of users with bandwidth under 1 MH/s which will re-stabilize the LTC network. Unless you think all those low hashers are going to stick around when there's "no profit to be made".
And again, if the LTC market does become less profitable then I will point my miners to BTC/PPC/NMC or whatever else has the potential for profit.
And AGAIN, 15 BTC is more than enough to buy my first ASIC, IF and WHEN they come out. IF and WHEN they come out, IF the community vouches that they are worthwhile, I WILL start buying them as I can afford them, but as it stands I'm not putting ANY faith into a technology that was supposed to have been released already and now might not even come out until January. And when January rolls around and they say, "well it's probably going to be March before they're ready" then we'll see just how stupid my plan was.
As it stands your arguments are not based in any kind of fact, only mere speculation and it's reading a LOT like someone who is either trolling me or someone who is trying to talk me into a ridiculously high interest rate for this loan. Either way, I don't give two shakes about what your opinion is, you have stated it, your point has been presented, considered and declared irrelevant so feel free to move along.