Same reason that I'd advise against trading it for a 1992 Ford Contour - cuz it's a bucket of shit.
That old GSXR isn't going to have much more power than you can get out of your SV, and it weighs a TON more....and more front straight speed does NOT make up for less corner speed, ask any novice racer with a 1000. You will NOT progress anymore by getting a heavier, poorer-handling bike just because it makes a little more power out of the box; if anything, you'll only hold yourself back. You get on the gas early enough coming out of a corner and get the drive onto the straight, and then brake late enough and carry enough speed out of the straight, and you won't NEED more horsepower to stay in the lead. I've won races against bikes making 20-25hp more than me MULTIPLE times, and they key is getting on the gas early, braking late, and carrying corner speed. I'd be curious to hear more of what the instructor/ex-racer that said you'd be better off with more power and corner speed has to say, and see how many (if any) championships he's won and with what organizations. That sounds like 'I can go fast at a trackday, but I don't race' instructor advice.
Additionally, there are still PLENTY of organizations with classes for SV's to race in; pretty much EVERY major club racing org has lightweight and SV classes - shit, CMRA has 4 classes that ANYONE with an SV can race in and be competitive(Formula 2, Lightweight Twins, Superbike D, Superstock D), and I've even seen super-fast guys on SV's do well in the 600 classes at smaller tracks. Old GSXR's, on the other hand - well, there aren't a lot of classes for 'em. You won't have ANY hope of being REMOTELY competitive in any 600 class, and even in some orgs that allow old 600's to ride down a class and run with the lightweights you won't be that competitive, because the bike just isn't capable of going as fast as a well-built SV.
On TOP of that, when you eventually get ready to sell that SV, there will be TONS of opportunities to sell it - people STILL buy those things all day, because they're EXCELLENT beginner racebikes, and even for an experienced expert racer SV's are fun and inexpensive to race. Try selling a 12 year old GSXR 600 - it won't be an easy sell. Honestly, I'd be surprised if you would even BE able to sell it, unless it was to someone who didn't know any better.
Ok, all very valid points. And I know for a fact that none of them won any Championships or what have you. So score a point for you .
I'm not looking to race, just looking for a fun bike to ride. So I'm not too worried about competition . Just looking to have fun.
Not sure about your horsepower comparison. From what I've read the approximate whp figures for my SV650 are in the 60-65ish range. I've NEVER seen a non SBK SV650 that's made much more than 80 hp.
The GSXR750 I'm looking at dynoed @ 125 whp and the guy selling it is a member of my local racing club WMRRA (Washington Motorcycle Road Racing Assocation).
The claimed dry weight of my SV650 is 375 from what I've seen, (from bikez.com). The claimed dry weight of the GSXR750 is 395, (from a Sportrider article on the bike).
So we're not talking a huge increase in weight here (at least, it doesn't seem so to me).
Now I do agree with your resale value. He's asking $3k for his (his has been for sale for awhile on the forums, but it doesn't seem like he's pushing to sell it hard either). Were I to sell mine, I'd ask roughly the same price and I'm sure I could sell mine relatively quickly (at least I THINK I could, that remains to be seen).
Remember, my current bike is the one you told me to stay away from . It's served me very well and has had no issues and has been an absolute blast.
Thanks for your input. I'm not trying to argue with you, I'm just bouncing my thoughts off of you since you're an intelligent individual with mucho experience.
I appreciate your long-winded posts and they are very informative. Wish you didn't live across the country.