I have replaced 5 individual
I have replaced 5 individual cells over the last 3 years. First cell failure was around 185k mark im almost at 250k right now. Each cell costs about 30-40 bucks on Amazon or eBay. I have under $200 in repairing it myself. I have it down to under an hour to replace a cell. I know of at least 1 company who sells rebuilt packs for about 1500 to 2000 depending on year and they have a lifetime warranty. I'm assuming they offer that knowing people usually won't own the car long enough and if they do need to repair it they probably do the same thing I do. Super cheap. Quite frankly the best option.