1. Banilla already rejected prize-preview as eliminating chance
The Supreme Court said it would be absurd if knowledge of the prize before play removed chance from § 99B.53. Counsel must explain—with facts, not labels—why disclosure before commitment plus a free decline is legally different from Banilla’s prize viewer, which also preceded play.
2. Ellis condemned a next-result indicator in 1925
The Court treated chance as attaching to which result would appear next, and treated repeated play for the coming indicated prize as the gambling allure. Prosecutors will map that structure onto a credit balance that draws unknown future offers.
3. Cash is expressly forbidden on the only retail-device harbor
§ 99B.52(3), IAC 481—104.2(2), and § 99B.55(2) close the amusement path for cash. Without that harbor, the device is analyzed under 725.5 (gambling house), 725.7 (gaming and betting—graduated to class “C” felony), 725.9 (gambling-device possession—serious misdemeanor; slot machines are listed), and 725.12 (lottery—serious misdemeanor).
4. Lottery uses a substantial-element test, not dominant-factor
Even if counsel could argue skill or disclosure under Banilla’s registration test, § 725.12(3) is satisfied by “any process involving a substantial element of chance.” Finite-pool assignment of the next offer is a substantial element from the player’s chair. § 725.12(2) separately targets commercial on-premises cash instant tickets.
5. 2026 DIAL rules treat noncompliance as unlawful gambling
IAC 481—104.3 forbids casino-resembling machines and 99F gambling games as amusement devices. IAC 481—104.6 states that failure to comply with chapter 99B limits constitutes unlawful gambling, with 725 conviction and 809 forfeiture as stated consequences. That is agency rule, not a court holding—but it is how DIAL and local prosecutors will frame a cash cabinet.
6. Session-wide staking and 99F exclusivity
Money inserted upfront creates a continuing credit balance. § 99F.15(3) treats wagering outside a licensed excursion boat, gambling structure, or racetrack enclosure as a 725.7 violation. Slot-like cabinets invite a “this is a gambling game off the licensed floor” theory regardless of backend logic.
7. Social gambling and bona fide contests are unavailable
Social gambling forbids a house share and caps wins or losses at $200 per 24 hours (§ 99B.42(1)(g), (i)). Bona fide contests (§ 99B.61) exclude poker, blackjack, craps, keno, and roulette and forbid a gambling device. Neither path fits a house-banked cash cabinet.
NCG factual responses and residual risk
Responses: at acceptance the monetary result is fixed and known; declines cost nothing; no post-acceptance RNG; Banilla was a merchandise-registration case in which players still paid to play; Ellis predates the 1972 repeal and chapter 99B; amusement exclusion is not the NCG theory—the timing of “chance to win” under §§ 99B.1(18) and 725.12 is. Residual risk: binding Banilla language on prize-preview, the Ellis indicator case, an express cash ban, a substantial-element lottery statute, 2026 casino-resemblance rules, and felony-scale 725.7 exposure remain material pending Iowa counsel review. The timing distinction is supportable; it is not settled.