Every RV membership advertises a savings number. None of them tell you the number that matters: yours. A 50%-off card is worthless if there's never a participating park on your route; a $630 camping pass is a steal if you're a snowbird parked in one region for the winter. Plug in your real camping year below and this calculator does the break-even math for the four biggest programs — honestly, with no affiliate links.
Your camping year
Rough numbers are fine — the point is the order of magnitude. "Avg nightly rate" is what you typically pay for a campsite when you're not using a membership.
How many of those nights would each membership cover?
Be realistic about how often a given network actually has a park on your route. These don't need to add up to your total — and you wouldn't buy all four.
The math
Net savings = estimated value the membership saves you − its annual cost. Positive (green) means it pays for itself for your plan; negative (red) means it doesn't. Break-even tells you the nights you'd need to flip it.
20 nights × $45/night × 10% = $90 + ~$40 fuel savings
10% off nightly rates at participating Good Sam network campgrounds (a large but not universal slice of parks — many KOAs and Good Sam RV Parks, not state/federal land). Also fuel discounts at Pilot/Flying J and a propane discount.
Read the honest breakdown of Good Sam Membership →8 nights at participating parks × $45/night × 50% off = $180
50% off campsite rates at 1,400+ participating campgrounds across the US, Canada, and Mexico — but with real restrictions: blackout dates, max-night limits per stay, weekday-only at some parks, and a participating-park list that skews toward lower-demand campgrounds.
Read the honest breakdown of Passport America →0 nights at Thousand Trails parks × $45/night you'd otherwise pay = $0 replaced by the pass
An annual camping pass that lets you stay at Thousand Trails campgrounds in your chosen zone at no nightly charge (typical rules: up to ~30 days per stay, then a short break before re-entry; advance-booking limits). Add-ons (Trails Collection, extra zones) cost more. Only pays off with concentrated, frequent stays at TT parks.
Read the honest breakdown of Thousand Trails (Zone Camping Pass) →6 stays × $45/night campsite avoided = $270, minus ~$30/stay spent at hosts ($180 — you get goods for it). Net = $270 − $99 membership − $180 host spend = −$9
Overnight stays at 5,000+ wineries, farms, breweries, golf courses, and attractions — no hookups, self-contained RVs only, usually one night per stop. Etiquette is to spend ~$30+ at the host (you get wine, produce, a meal, etc. for it), so the 'free' night isn't quite free.
Read the honest breakdown of Harvest Hosts →How we estimate: each program's savings is modeled from the nights yousay you'd actually use it, at youravg nightly rate. We don't assume you'll restructure every trip around a network. Membership prices, participating-park counts, blackout rules, and night limits change frequently and vary a lot by park — these are estimates, not guarantees, and not financial advice. Always confirm current pricing and restrictions with each provider before buying. Membership details last reviewed 2026-05-12. This tool contains no affiliate links.
The honest version of each membership
The calculator above is deliberately conservative. For the full picture — restrictions, participating-park quality, the upgrades worth buying, and when each one is a trap — these deep-dives walk through it:
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