You have to reprint the thing so you can sell new copies of it. Or persuade a publisher that it's worth them going through the hassle and expense of reprinting it. Or hassle with getting it into newfangled distribution services so you can sell electronic copies of it.
Trust me, this is work, I am an independent artist who has a thing that's out of print that she now regularly gets people asking her to reprint, and I am so damn burnt out from my last Kickstarter that I'm ignoring this ever-growing mass of people eager to give me money.
Trust me, this is work, I am an independent artist who has a thing that's out of print that she now regularly gets people asking her to reprint, and I am so damn burnt out from my last Kickstarter that I'm ignoring this ever-growing mass of people eager to give me money.