lol, you can't even fill jack trice now, what's the need for some kind of expansion? iirc, isu offered discount tickets for the colorado game last year (with the b12 north title on the line) and still couldn't sell the place out. every 2 years, that place would be full when nebraska and iowa brings its fanbases. other than to appease those 2 fanbases, that expansion is pointless.
also, iirc isu doesn't exactly fill hilton on a regular basis.