Should I stay or should I go?

I have been at my Stable for almost 10 yrs. My son and I began leasing horses (the owners pets) for years. When my son was too old for mom, I bought my own horses. I enjoy long trail rides, and this Stable had access (1 1/2 miles) to the State Park and other trail riders; a huge bonus. The economy has hurt this stable, most boarders have left, the place was old but now really run down, and the owners own pets are very old requiring $$$ and time. This is a difficult situation as they are not only my neighbors and friends, but have been in the business 60 yrs and have helped me countless times. I know they look out for my horse The problem; I can no longer access the park trails and must haul my horses due to the traffic (most bridle paths are closed off due to land purchase). There is no one left to trail ride with; I do solo ride though. The place is beyond unkept, stalls not mucket out, fence doors held together with twine, electric wire in the way (my mare tries to bolt everytime we cross to leave the field). Barn is disgusting not that I use it much at all so can overlook that issue. No shelter in mare field (the old shelters blew away years ago). It is not an efficiently run place, so less horses still spread out on 50 or so acres; when a few pastures could be shut down. My mares field has a water bucket that needs replacing and the manager keeps trying to fix it by draining it and using some liner rather than spend $300 for a new one. Well, it is disgusting at the bottom, full of muck, mudd; I am an engineer and know that bucket is beyond repair. Yesterday in the heat, the mares had no water, and I found a bunch of 4 gallon buckets filled them up and brought each water (there are only 5). The horses are fed high grade hay, the Stable Manager is an old horseman and knows alot and goes above and beyond when you or your horse are in need; my mares seem happy, he doesn't confuse horses and feed like alot of the barns, nor skimp on cheap hay and he also treats every hore as his own horse and notices any injuries, etc. I am unhappy about the gates, refusal to spend the $300 for a water tank, refusal to fix the darn gates, no mucking of stalls, sharing my horses stall with his old hores full of rain rot. My horse seldom uses her stall but now she is laid up for 2 weeks due ot injury and it is beyond gross. I even tried to muck out my horses stall yesterday but no wheel barrel (the only one was full of SXXT and I can't lift it). It is sad; I know these folks are hurting, their overhead is very high, their own pets cost them an arm and a leg, the methods the Stable Manager uses are make work inefficient and you can't tell him otherwise. The Stable Manager is the one doing the work (15 hour days) is 67 yrs old, fast and quick but has some physical issues so I hate to complain. There is old crap and trash all over the place and a few boarders have started to at least pile it together. Stable Manager takes offensive if you do any work (insult). If you leave, he views that you fired him and well, forget any relationship at all in the future. The difficult part; they are my neighbors, we live in a close community, they need the money, have help me alot and have saved me vet bills, leased me his own personal horse, best horse I ever met, and that horse took care ofmy kid (8 - 12) on long fast rides. Now though, things are really grinding on my nerves. What would you do? There are plenty of stables around as I live in horse country. I have visited a few and crossed them off the list quickly (feed poor quality hay, leave horses in barn 24/7 as no time to turn out due to lessons, showing, camp etc). Your thoughts? Help please, this is a painful decision.