There's not really any difference between KJ and BGE in using them. Nor in construction quality, despite the claims of KJ. Mexico vs China? Can't say I have a preference.
BGE does sponsor some fun events and has a better dealer network for warranty support which has saved many a BGE owner from tears.
If you have time to search for lightly used at bargain prices that's the ticket. The MBGE shown was used one time, stored 7 years then sold to me for $140. I bought a Small for $75 but resold it to buy the Medium.
Owning both, I have no preference.