According to source the ecc has to ‘kick-in’ about 3700 times per year and dimm module. That’s 10 times per day and dimm.
Depending on how important your server is to you you’ll either need it (in case of important data you absolutely don’t want to lose) or forget about it (just a hobby project, nothing serious).
For now. But n the long run the focus will shift to profit. That’s a totally normal thing.