I don't care about their payday if it means another useful tool disappears.
On another note, if you truly find the site useful, you should be interested in its longevity. For all you know, a team of 7+ with an affiliate sales model and only 60,000 monthly uniques may not have been able to sustain this product without interest from a larger corporate entity.
In essence, a sale is not synonymous with disappearance, and sometimes it can even _ensure_ the opposite.