Danny uk,

I owned the I30 a couple of years ago and I like it very much. I had limited time with the PA-80. I borrowed it from a friend for a couple of weeks to try it.

I find that the styles are very much the same. They are some new styles that are in the machine. The voices of the pa-80 are a little better. piano, guitar and some others.
I know it takes the Triton cards, but I don't know if it has a hard drive. I couldn't tell if it did or not.

If it was up to me and this is just my opinion. If your looking to replace the I30 with the PA-80 I wouldn't. If your looking for a second keyboard the PA-80 maybe?. but there are other keyboards out there..

hope this helps.