$50 would get you few buys. This is an open sourse project, and whilstI appreciate that that means free as in libre, It should also be as close to free gratis as possible. OS should be a labour of love, not of money, and whilst I can't program, If I could, I wouldn't expect to be paid for a OS piece of kit. That comes through advertising, which comes through popularity, which comes through freeness. Firefox is a good example of this,as is Linux. No-one has ever had to pay for using them, and their founders are fairly rich. Not Billionaires, admittedly, but they don't exactly have financial problems.
Whilst I'm not a developer, I do not view LMCE as anything other than a labour of love. An amazing, Fantastic, even orgasmic labour of love, but a labour of love none the less.