Out of curiosity, I just googled that machine and it seems folks have nice things to say about it. I found in sewing.patternreview.com an older Tiptronic sold for about $1,000, but couldn't find any prices on the model you mentioned. Maybe you can look up some reviews and see what you think. Also, if there's a Pfaff dealer near you, find out what they would charge if they had a used one--just for comparison.
I have an older more basic pfaff (hobbymatic) and I really love it as a back-up, travel machine. It's been very dependable and I didn't have to shell out a lot for a walking foot and darning foot for quilting. It's stitches are just as nice as my Viking.
By what I've read, it looks like the 6270 has the built in walking foot and the needle up/down option--both great for machine quilting. Again, I'd look this up if I were you, but to me, it sounds like a good deal.
Keep us posted on what you decide!

Well, I took the plunge! She says she paid about $1300 for it about 9 years ago. Local dealer said blue book value was $350. I offered $410 (one sold for that on ebay recently) and she has accepted the offer (both hers and the ebay machine came with an extension table - nice extra!). Everything I can find on line about Pfaffs has been positive, though I did not find much at all about this specific model. What I did find though, was positive (epinions.com). So, I'm soon to be the proud owner of a Tiptronic! I'm waiting to take possession until her new machine with larger throat space comes in next week. It's going to be a long week.... Thanks for your good advice! Take care.

What fun you'll have with that new machine! You'll have to follow up on how you like it after you've had some serious bonding time!
It really does sound like a sweet machine!
Happy sewing!!!

I'm a day or two too late for I am looking to buy a 6270 Pfaff !! Anyone out there know of one for sale, especially for under $5oo.oo?

I just picked up a Tiptronic 6270 at a thrift store for $ 10.00. They sad it had problems.

they just had all the setting and tension wrong . It works like a charm . Sounds like I did good.