Mark
Its really what features you want. I wanted a TOP piano for home and got the Roland FP90. Its so good if I get a steady piano gig I would want to take it despite the 50LB. weight. Take a step down in price and weight and you get he FP30. $700 and it woud definatly do the job. You can even use the bluetooth App for some Rhythms.
In the music store where I worked we had the Roland, Casio Privia, and Yamaha models all at about the same price point. different features with each with the Privia offing the most bells and whistles. Price point is where you will find the big differences in key feel and sound.
Make a comparison list of features of each and then shop. You can also buy/return if you can't find one in the store.