Rehabilitate old bike or not?
I am having a tough time deciding what to do to prepare for winter. My winter rig from last year is an entry-level mountain bike and the entire drive train, BB and possibly derailleurs need to be replaced. The parts will probably run me at least $250 (and that is utility-grade stuff). Pros: new parts, the frame is sized right. Cons: still a low-end bike (shifters, brakes, etc.)
I have been investigating just buying a whole used bike in that price range which may be a better value, but of course you are still faced with the issue that it may have parts that need replacing. From what I see there are not a ton of large-size framed used bikes around in my target range. I am quite tall and need large frame (my summer road bike is a 60cm).
Any advice or comments on my dilemma? A brand new bike is unlikely because winters are so harsh on components that I don't want to throw my money away. Surprisingly, both LBSs I went to discuss this with pretty much steered me away from new bikes also (to their credit - I appreciated their honesty and will support them when I buy other stuff).