I'm assuming you're in the US.
The CDP-130 uses an older Casio action. The PX-150 / 160 use the newest "3-sensor" action (which is used across the whole "new" Casio line).
Other possibilities in that price bracket ($433 for the Alesis Coda Pro "bundle", on Amazon.com):
. . . a used PX-150 or PX-160 -- try the GuitarCenter.com "Used Gear" listings, or Craigslist for your area.
On Craigslist, that's likely to come with a pedal and stand.
If a used PX-150 has 88 keys that work, and a sound system without obvious buzzing or rattling, I'd pick it over either the Alesis Coda Pro (I can't find any reviews I trust) or the CDP-130.
Note: The Guitar Center "used" listings are poorly indexed. A search _by category_ -
. . ."Used Gear" --> "Keyboards & MIDI" --> Pianos --> Casio
yields several PX-150's (and an inexpensive PX-350) scattered over the US. Even after adding shipping costs to your location, you might end up "within budget". Guitar Center ships used gear to its own stores at reduced cost, I think.
If you _must_ buy something new, the Casio CDP-130 is well-proven. I haven't played one.
I just discovered the Yamaha P71, an "Amazon-exclusive" version of the P45. Might be worth a look.
Any one of these will be a substantial improvement over what you're playing now.