I am LORD TRANCOSO of the
Galactic Federation of Lies & I'd like to give you Earthlings this ($free!!!) advice; when something looks too good to be true, it usually is!
The above mentioned Large Motherships of our 'colleaques' of the
Galactic Federation of Light, are indeed self-contained cities & do contain all comforts - 5 * hotels, 24/7 entertainment zones, (free of charge) bars, arcades, nightclubs, baroque bordello's, etc. etc.
Allas, - "Surprise!" - the Large Motherships you Earthlings are invited to, contain a super efficient facility, ran by Artificial Life-forms (robots), where you will be locked up, untill it's your turn to be stripped of all your valuble assets. Bllood, organs, the gold in your mouth, etc. (Human organs are considered a delcatesse by many carnivore species & therefore big business.)
Free will (curiousity) is a true blessing in disguise, isn't it?
Now for the good news. When I was 17, I was invited to enter an alien craft. It belonged to a rogue group of Pleiadan 'Independientos'. The first thought that came up was a suspicious
'Why me?' My question was immidiatly telepaticaly answered.
"Hey kid, consider this your lucky day; take it or leave it!" And indeed, I've never had one sparkle of regret that I've excepted their invitation.
The moral of this (true!) story is: Do not trust aliens who sound like German New Age Hippies.