4:45 CORRECTION: The museum is not free, but for members. Membership costs money in order to get free admission. Without membership, there are still admission fees. I'm not comparing or saying benefits of either, just that it is inaccurate to simply say, "The museum is free." And, it would be nice if you uploaded a video featuring only free events. As far as reasonably priced events, there are also Keys Ranch tours in Joshua Tree and ranger-led hikes at the Palm Springs Indian Canyons.
You missed the best one of all - Svika's Rattler Roundup at Stringfellow! Every August, as the temperature crests 100 and the smog constricts the lungs, there's a special and unique event that takes place in a remote box canyon in the heart of Rivertucky County, Named after the famed Stringellow acid pits, where many a benighted Inland Empirian bit the dust decades back, the Rattler Roundup features a whole heap 'o treats that just cain't be beat! Whether it's the RCC Cosmetology School's world-famous Sensational Sword-Swallowers or the manly men of the Legendary Whitegate Wussy-Whomperz, there's somethin' for every member of the family! So come on down to Entertainment Town, folks - and git good 'n ready fer a big ol' Inland Imp-Ire whale-cum!