There's this belief floating around ecommerce that free samples cheapen your brand. The logic goes like this: give stuff away and you train people to expect free stuff, you torch your margin, and you make a premium product look a little desperate. I get it. I half believed it too. Then we ran a test that flipped me completely.
The test that changed my mind
One of the brands I work with, Limitless Walls, sells premium peel and stick wall murals. It's a high consideration buy. People fall HARD for a design, and then they freeze... because covering an entire wall is a real commitment, and you can't exactly feel the product through your phone screen.
So in February we rewrote ALL of their abandonment emails. We didn't touch the design. We changed the offer. Instead of the tired "oops, you left something behind" nudge, every email pushed one thing: order a free sample. And we sent it in plain text. No hero image, no slick graphics, just a short note that read like an actual human typed it.
That plain text part matters way more than people think. A designed email looks like an ad, so your brain files it as an ad and keeps scrolling. A plain text note reads like a tip from a friend who happens to know wallpaper... so people actually open it, and they act on it.
By March, sample requests were up 60% month over month. By April, those samples had turned into sales and revenue was up 24%.
Then the client turned the samples off
The client wasn't fully convinced the samples were the thing driving the revenue. Fair enough... correlation isn't causation, I'd push back too. So in May they shut the sample push OFF to see what would happen. June revenue dropped right back down.

You can't ask for a cleaner test than that. Samples on, revenue up. Samples off, revenue down. (They're turning the whole thing back on as I write this.)
Why samples don't cheapen a premium brand
Samples don't cheapen a premium brand. They kill friction. When someone's about to drop real money on something they can't hold in their hands, doubt is the ONLY thing standing between them and the buy button. A sample answers the question they're actually asking, which is "okay, but is this as good as it looks?" If the answer is yes, the sample closes the sale for you.

The one rule: the sample has to be as good as the product
Here's the part everybody gets wrong. A sample only cheapens your brand if the SAMPLE is cheap. Limitless Walls doesn't mail out a flimsy printout. They send a thick, premium peel and stick swatch. You stick it on your wall, peel it back off, and you feel for yourself how easy it is and how nice the material actually is. The sample IS the brand, just shrunk down.
Now if they'd sent a thin paper print that curled up at the corners the second you touched it? Yeah, THAT cheapens a brand, and the whole thing blows up in your face. So the rule is dead simple: make the sample as good as the product. That's the whole game.
I just lived this as a customer
Funny enough, I ran into this from the other side of the table a few weeks ago. I ordered about $7,000 of rubber flooring for the gym in my house. Before I pulled the trigger, Flooring Inc sent me four free samples so I could pick the color and the thickness in person. Did that make them look cheap to me? Not for a second. Total opposite. I was about to spend real money and they wiped out every doubt I had. I trusted them MORE, and I bought without blinking.
How to actually use this
If you genuinely believe in your product, get it into people's hands. Put samples front and center in your abandonment flows, and write those emails like a person instead of a billboard. Just make sure the sample lives up to the thing you're trying to sell.
A great product deserves a great sample. A cheap sample is the only thing that actually cheapens a brand.