The yeses have it by a wide margin. In a lower-volatility environment, more strike prices is a good idea for customers. Floor traders and specialists would probably balk at it because they'd have to keep an eye on more strike prices.
Yeah, I can't imagine anyone that has tried to put on a spread that hasn't wished for more strikes. HUGE I don't see why this would add much work - it is mostly all autoquoted anyway. nitro
Autoquoting is harder than you might suspect. Additional quotes translates to additional hardware, bandwidth, and software licenses. It is a very large cost with a very small return. -segv
The bandwith you talk about is an exchange problem, not a problem for the traders hardware and software costs are not a problem at all. I was a market maker at Euronext Amsterdam and we even asked for more strikes because it increases trading volume and so it increased the profits for the marketmakers. At euronext a lot of stocks, especially in the front months, have strike prices with the interval of 1 euro and for the customer this is ideal! It is absolutely ridiculous that in the US a lot of stocks trade with $5 strike prices.