I personally think that PMDG should include the -200ER in the base pack for realism's sake. I personally love the -200ER, most fave plane ever. There's nothing wrong with the 200LR they already have except the raked wingtips and the engines. All they need to do is add PW and RR models and remove the raked wingtips to get from 200LR to 200ER! How hard can it be?