The math, honestly

Blackjack played with correct basic strategy runs about a 0.5% house edge against the amount you wager — not the amount you buy in with. That distinction does most of the work here.

That's a tie on cost, and a win on risk. Everywhere else on this site the biggest danger is named plainly: banks close accounts over repeated money order deposits. Chips cashed at a cage produce no such pattern. If you're running this weekly, that matters more than the nine dollars.

And because the edge applies to what you wager, a modest session — buy in $1,800, play a couple of shoes at table minimum, colour up — carries an expected cost well under the money order route. You are not obliged to churn the full buy-in.

What it actually takes

• Correct basic strategy, memorised. The 0.5% figure assumes it. Casual "play by feel" is nearer 2%, which turns a $9 cost into $36 and kills the advantage. It's a fixed, learnable chart — a laminated card costs a few dollars — but you do have to learn it.
• Good rules. 3:2 blackjack, dealer stands on soft 17, double after split. A 6:5 table pushes the edge past 2% on its own; walk past those.
• Enough play to look normal. Buying in and immediately colouring up is the one behaviour that draws real attention, because it's what laundering looks like. Some play is the price of a clean exit.
• Shuffling defeats any clever ideas. Most rooms now use continuous shuffle machines, and online tables reshuffle every hand. There is no card-counting angle here and you shouldn't go looking for one — basic strategy is the whole method.

The obstacles that are real

• Prepaid acceptance varies by property. Cages process debit, and PIN gift cards ride debit rails, but plenty of casinos refuse prepaid outright on fraud policy. Call ahead — this is a per-property fact, not a general one.
• Chips on credit are a different matter. Nevada law bars buying chips with a credit card, Amex and Discover ban it outright, and operator agreements with the networks prohibit it. A prepaid card run as PIN debit is a separate rail — but whether it clears that way is the terminal's call, not yours.
• Cage advance fees can be several percent if the transaction routes as an advance rather than debit. That alone can swamp the 0.5%.
• Variance is not a rounding error. The half-percent is a long-run average. Any single session can swing hundreds either way. Over a year it converges; over one Saturday it absolutely does not.

Verdict

A legitimate route, and an underrated one. It costs about what money orders cost, and it removes the deposit pattern that is the single most common way people lose bank accounts over this hobby.

It asks more of you in exchange: memorised basic strategy, table selection, a property that takes prepaid, and the discipline to sit and play. If you already play blackjack competently, it's arguably the better liquidation channel. If you don't, learn the chart before you learn this — the edge only exists if you play correctly.

What you actually need

Three things, none of them expensive. The edge described above only exists if you play correctly, and playing correctly is a chart you can buy for the price of a sandwich.