We all feel your pain, Chris
. I have a 6 year old Dell Latitude laptop who's battery quit taking a charge a year or so, and like some of the other responders, decided I would just pass on spending $100+ for a new battery and run it off the charger since I don't need it to be portable.
The thing that gets me though, is the small devices like iPods/iPhones and iPads that are no fun unless they're cord free. Their batteries are not as expensive and should last a long time, but the manufacturers make them so freaking hard to change, most people who don't want to upgrade pay the company or a third party to change them. My old iPods were easy enough with the tool the replacement battery company sent with the new batteries, so I replaced them for around $30 each. But my newer iPod Touch is too difficult to open without fear of destroying the damn case. My new iPad Air 2 is definitely going to a Pro when its battery gives up.
I'm in the market for my first "Smart" phone, and notice most are not user replaceable batteries. When Samsung changed the Galaxy S5 to the S6, the user replaceable battery went Bye Bye. Glad to see LG kept it on the G4, as are a lot of folks leaving User Comments about it on various review forums who've have made a point of mentioning how they love that LG kept the removable battery.
The way new model roll-out cycles are, the OEM battery lasts long enough to make it to a couple new generations of the device, and a lot of people weigh the cost of a new battery against a buying a new device that may have enough new features or improvements to justify simply replacing the old one. But, if you like your old one, and don't buy into the wasteful world of designed obsolescence, have the company replace the battery and keep enjoying the device, as you and I have done.

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