My: MacBook Pro (Retina, 15-inch, Late 2013) 2.3 GHz Intel Core i7 16 GB 1600 MHz DDR3 512gb SSD Is starting to have some weird disk corruption issues at first it started with my Windows 10 VM in Parallels Desktop getting corrupted forcing me to have to rebuild a new one as I didn't frequently back it up plus it was 32 bit and I had been wanting to move to 64 bit anyway, that didn't worry me too much but then Time Machine wouldn't and still won't run even after using a new external drive and deleting all of the local TM preference files & such, leading me to have no end of issues with Disk Utility running First Aid both live and from Recovery, in Recovery it sometimes says it is successful but gets stuck with the fan blaring no matter how long I leave it so I can't hit done and have to force shut down. Now "Other Volumes" is taking up about 150gb on my hard drive that I can't seem to reclaim, Console is constantly logging: process_snapshot_phys_extents:699: found bogus extentref tree entry with len_and_kind=0xfff093c34a3debba owning_obj_id=18442505391958978800 refcnt=-986896, skipping For different GUID's over & over & over. I tried reinstalling Mojave from Recovery but that didn't help. I know erasing and starting from scratch would be the next step but without a time machine backup I'm hesitant to do that as it will be a pain to get everything setup again, I have of course taken manual backups of important files including the VM. Plus I don't have high confidence that the issue won't recur after going through the Erase so replacing the SSD and the battery (may as well do both if I was to do one) would be one option for a higher level of confidence but I feel on a 5 year old laptop that might just be prolonging the inevitable and going against the buy once, cry once principle I try to stick by. I went through the Apple GiveBack wizard and would get an estimated $590 back if they don't care about some blemishes on the display so that coupled with a discount through my employer is twisting my arm toward buying new especially as I have an international trip coming up that I need a reliable laptop for where I wouldn't be able to get a replacement. TL;DR: Late 2013 rMBP starting to have issues, invest time & money on repairs or buy new for better peace of mind on reliability (and better performance of course)?