I bought one 36 years ago, a Chinese knockoff when they dared put their own name on it... made by the "King Fing Fu" machine company.. Same model and design as the Chinese knock offs pictured above. I still remember it was $187.00 back then.
Has met my needs and has tons of hours on it.. As mentioned above, be prepared to fiddle with guides, bearings, etc if you want really accurate perpendicular cuts to the work plate. As already pointed out blade quality is critical for straight cuts..
Don't know why but with some blades the teeth on one side of the blade tend to loose their cutting ability compared to the other side and start making curving cuts..
Agree on the M42 vari-teeth blade recommendation. They have always served me well.