What makes people start collecting vintage Macs? There are many reasons. Some folks want to play abandoned games or use old software on original hardware. Some simply don’t know how to transfer files, and thus keep their old machines as a giant backup, just in case.

I collect old Macs because I care deeply about history. I want to have an informed perspective on the past so I can better understand trends of user-interface design and the evolution of technology.

My first vintage computer was a Macintosh Classic I bought on eBay for about $80. After lifting it out of its shipping box, I reached around the back to flip on the power switch and watch it boot. I loved hearing the whir of the hard drive, the fans humming and the delightful blip!-blip!-blip! noise the disk drive made when reading a floppy.

Apple computers are highly collectible. They span the entire history of personal computing. The company’s unwavering design philosophy, always pushing ease of use, means even the oldest and weirdest Apple computers are never hard to figure out. The historical lineup spans all different kinds of form factors and designs. Not to mention, they look rad.

So, you want to collect old Apple computers, too? Where do you start, and what do you want? Here’s a quick guide to buying classic Macs. These tips should get you started and help you avoid common pitfalls. (If you want to go even deeper, we also provide some links to further reading on the subject.)

Alex Jason, the Maine teenager who used lawn-mowing money to build one of the most impressive collections of rare and historical Apple devices, recently packed it all in a 26-foot truck and made a heartbreaking trip to deliver it to a new owner.

The dream of creating a museum with the collection had hit a snag. Alex had the building and even an impressive board of directors that included Mac designer Jerry Manock. But raising capital to renovate the site proved near impossible in sparsely populated Maine.

Adam Rosen’s collection of vintage Macs doesn’t make him a hoarder, but he acknowledges it doesn’t make him an obvious choice for a husband, either.

In several rooms of Rosen’s Boston home you’ll find a love story nonetheless. The rooms are shrines to a high school sweetheart that matured and grew more sophisticated with time, a friendly face still aglow with “hello.”

The fun Jonathan Zufi had playing RobotWar on his high school’s lone Apple II in the early 1980s re-emerged one day. He just had to play it again.

The lark that led Zufi to an online search for an Apple II to play the game grew into the acquisition of more than 500 vintage Apple items, which he lovingly photographed, but then sold to fund production of a coffee table book that has sold more than 15,000 copies.

How far would you travel to see a collection of rare Apple devices, or the clothes Steve Jobs’ wore when introducing the iPad to the world?

Hopefully, the Czech Republic is not too far for you.

The newly opened Apple Museum in Prague is home to products and memorabilia from eight different private collectors. Its inventory might make the visitor think he’s strolling through some corporate archive in Cupertino.

Starting a collection of Apple’s past is relatively easy and often affordable. But once you get started and a pricey, rare object presents itself, will you be able to control yourself?

Here’s a list that will test whether you have the fever and an intense desire to hold personal computing history in your hands. It may also test your fiscal fitness.

A 10-year-old kid in Maine finds an iMac G5 on Craigslist and arranges to trade a minibike and a snowblower for it.

The computer was supposed to be for games and homework. It instead proved to be the first piece in what is becoming one of the most significant private collections of Apple devices in the United States.

For years, Apple has been under pressure to open an Apple museum. The company’s rich and storied past has its fans clamoring for a central repository of that history.

Word from the company: No. Apple’s leaders say they are more interested in the future than the past.

In fact, the most complete historical collection of all things Apple is nowhere near Cupertino. The serious Apple fan must travel to, of all places, Savona, Italy.