Have you ever managed to fill out a Pokédex?

I have. I was playing Pokémon Diamond and I only needed Drifloon. Took me FOREVER to find it

yes but it required have two versions trading between the two and with friends and some wi-fi trades most of which weren't even good trades

N. O..

I never have, I just can't be bothered and don't have the dedication or skill.

Only in my first Emerald game I managed to finish the Pokedex but at the time I was rather young and I mainly did it for the Kanto starter ended up choosing Zenigame/Squirtle by the way xD

I'm workin on it, so far i have seen 502 altogether and i've caught a feebas...(but y did it have to be a naughty nature ! >.<

Regional Pokedex? Yup. Tons of times.

National Pokedex? A couple times, yes.

Never, the rewards you get for it ain't worth the hassle.

I had finished the pokedex all i needed was a Scizor

I did in my Platinum that was until it stopped working spontaneously.

Haven't played Platinum yet, but it doesn't seem possible in the ones I have played sofar. I was reminded this & why when The Escapist came out with an article called "Can't Catch Em All."

& you really needed all of the handhelds. If you were to play em on a ROM, I don't know how you'd transfer version-exclusive Mons between games.