Space Needle is ok, but Chihuly Garden is fabulous. Be sure to visit the restaurant in the Gardens. Chihuly has been collecting things his entire life, and this gives him a place to display the stuff.
Herded like cattle- bought tickets the night before without an entry time and had to wait 1 1/2 hours to get to the top after we arrived at the park. Had to find a printer because they required a printed voucher for proof of payment. Not sure if we saved any money by combining the two attractions. The Chihuly Gardens were awe inspiring.
Nice ride and views from the Needle, with a modest 15-minute wait only. Chihuly Glass was walk right in, and we caught a narration in the mille fiori room that was very interesting...